Houston Astros manager Dusty Baker says his side "don't know how to quit" after fighting back from conceding a first-inning grand slam to force a Game 6 in the World Series against the Atlanta Braves.

The Braves raced to a 4-0 lead from Adam Duvall's first-inning grand slam as they looked to clinch the World Series on home soil at Truist Park leading the series 3-1.

The Astros, who were world champions in 2017, American League (AL) winners in 2019 and fought back from a 3-0 deficit in last year's AL Championship Series against the Tampa Bay Rays to force a Game 7, responded with back-to-back two-run inning, before a three-run rally in the fifth inning to take the lead.

"We've been through many of these battles," Baker said at the post-game news conference. "They don't know how to quit.

"They're always looking for an edge or an opening. Fortunately tonight we took advantage of some."

Carlos Correa, who was part of the title-winning 2017 team, had three hits and two RBIs for the game, while Martin Maldonado came up with three RBIs. The Astros catcher was the first player in history to drive in runs with a hit, walk and sacrifice fly in a postseason game.

Maldonado's improbable contribution came after the Braves appeared on their way to securing their first World Series since 1995 after Duvall's first-inning grand slam.

"I always say, if it's going to happen, let it happen early," Baker said about the grand slam. "You don't want it to happen in the middle of the game or toward the end of the game."

The home crowd was electric after Duvall's grand slam, demanding a curtain call, but he insisted they did not get carried away.

"We celebrated it, we got excited and that's what you do when you hit home runs, but it's a long game," Duvall said.

"That happened in the bottom of the first. It's a nine-inning game, and they didn't quit."

Braves manager Brian Snitker added: "We knew we had a long, long way to go in that game and anything could happen. It would have been great if we could have kept adding on. We just weren't able to do that."

Brooklyn Nets head coach Steve Nash laughed off any concerns about Kevin Durant after being ejected in the side's 117-91 win over the Detroit Pistons only days after another undisciplined act.

Durant was ejected in the third quarter for an elbow to Kelly Olynyk, coming after he was fined $25,000 for throwing the ball into the stands during Friday's win over the Indiana Pacers.

The 33-year-old forward was fortunate to avoid being ejected for the offence against the Pacers.

"I would say they are just two random events," Nash told reporters when asked about Durant's mindset. "I wouldn't read too much into it. He's had a laugh about both of them and held his hand up."

On the incident, Durant admitted he was at fault for the elbow on Olynyk but defended the intent.

"I tried to run through the screen," Durant told reporters. "That was just the result of me trying to blow the screen up. If we're looking at the tape, it looks like I extended [raised his elbow] a little bit. I was just trying to blow the screen up, get over it, fight through, it is what it is."

The Nets went on an 11-0 run after Durant's ejection led by James Harden with five assists during the stretch.

Harden, who has started the season slow as he recovers after rehabbing his hamstring during the off-season, posted a triple-double with 18 points, 10 rebounds and 12 assists, earning praise from Nash and Durant.

"He's improving in all areas," Nash said. "His conditioning, his explosiveness, his confidence, his feel, his rhythm, everything is moving forward in the right direction.

"You have a nice lead but momentum can swing fast. When we lost Kevin, it was important we continued to show impetus. I thought James was great. He led us in that stretch, being aggressive, making the right decisions."

Durant, who joked that his ejection ignited the team and crowd, added: "He understands the game and how to put people in good positions. It's not a surprise that he can take us on a run so fast."

Harden's triple-double comes after scoring a season-high 29 points against the Pacers, in a sign he is getting back to his best.

"I’m just playing. The confidence and just my rhythm and all that is coming back simultaneously together. It just feels much, much better," Harden said.

"I knew I was going to have a slow start because I wasn’t playing a lot. But I knew the work was going to catch up and ultimately I was going to get back to where I need to be. Game by game, I’m just feeling better. More confident, extra pep in my step. Just overall much better."

James Harden recorded his first triple-double of the season as the Brooklyn Nets claimed back-to-back wins for the first time this NBA campaign in a 117-91 victory over the lowly Detroit Pistons on Sunday.

Harden finished with 18 points, 10 rebounds and 12 assists after three quarters, while Nets team-mate Kevin Durant top-scored with 23 points but was ejected in the third quarter for shoving his elbow into Kelly Olynyk's face.

Former MVP Harden has had a slow start to 2021-22, however, he backed up his season-high 29 points against the Indiana Pacers on Friday with another impressive showing which will encourage the championship-chasing Nets (4-3) that he is getting back to his best after an injury-impacted offseason.

Harden hit four three-pointers as the superstar guard – already Brooklyn's all-time triple-double leader with 13 – joined Hall of Famer Larry Bird for second on the NBA's all-time list with 59.

Mitchell leads Jazz past struggling champs

Donovan Mitchell starred with 28 points, including a treble of first-quarters three-pointers as the Utah Jazz hit their first five attempts from range in a 107-95 win against slumping champions the Milwaukee Bucks. Giannis Antetokounmpo had 25 points, seven rebounds and six assists for the Bucks, who have lost three in a row.

Carmelo Anthony – who is shooting a career-high 50 per cent and 52.2 per cent from three this season – scored 23 points off the bench, while LeBron James had 15 points, seven rebounds and assists in the Los Angeles Lakers' 95-85 triumph over the Houston Rockets.

Luka Doncic led the way for the Dallas Mavericks with 23 points, eight rebounds and 10 assists in a 105-99 victory against the Sacramento Kings.

Dame cold in Blazers loss

All-Star Damian Lillard's shooting was wayward as the Portland Trail Blazers were downed 125-113 by the Charlotte Hornets, hitting two from 14 from three-point range for a below-standard 14-point return.

The Houston Astros delayed the Atlanta Braves' World Series celebrations after flexing their muscles in Game 5, winning 9-5 in come-from-behind fashion.

Atlanta had the chance to clinch their first World Series title since 1995 on home soil, but the Astros spoiled the party to stay alive in MLB's showpiece.

The Braves led 4-0 after the opening-inning grand slam before the desperate Astros – led by Martin Maldonado's three RBIs – rallied to put Atlanta's celebrations on ice.

Atlanta still lead the best-of-seven matchup 3-2 and can claim their fourth World Series away to the Astros in Game 6 in Houston on Tuesday.

In MLB history, teams ahead 3-1 in a best-of-seven World Series have a 40-6 record. According to Stats Perform, clubs in that situation are 11-1, with the 2016 Cleveland Indians (against the Chicago Cubs) the only franchise to lose the series having held a 3-1 advantage.

Adam Duvall of the Braves became the first player in World Series history to hit a go-ahead slam in a potential clinching game.

But Houston's offence came up big with two runs apiece in the second and third innings before a three-run fifth-inning helped the Astros move 7-5 clear.

The Astros – also fuelled by a resolute bullpen – made sure of the win via runs from Kyle Tucker and Jose Altuve in the final two innings as Houston became the first ever team to trail by four-plus runs on the road in the World Series and win by four-plus runs, per Stats Perform.

Milwaukee Bucks head coach Mike Budenholzer is hopeful of getting key players Jrue Holiday and Khris Middleton back soon after the NBA champions slumped to their third successive defeat.

The Bucks went down 107-95 to the Utah Jazz on Sunday, with two-time All-Star Middleton absent due to illness, which Budenholzer clarified after the game was not COVID-related.

The loss condemned Milwaukee to yet another loss, leaving the Bucks 3-4 in their title defence as they struggle without All-Star Holiday (ankle), Brook Lopez (back) and Rodney Hood (hand).

Milwaukee – who had averaged 91.5 points on Halloween since the 2000-01 season, second lowest in the NBA heading into the matchup – were again forced to come from behind against the Jazz, trailing by 17 points at the final change, with a late rally not enough.

"The group kept fighting tonight," Budenholzer said in a news conference. "The fight was good. We couldn't quite get there but the guys were working."

Giannis Antetokounmpo top-scored with 25 points, along with seven rebounds and six assists, but he lacked support with Holiday, Lopez and Middleton out.

Holiday has not played since injuring his ankle in the Bucks' opening night win against Eastern Conference rivals the Brooklyn Nets.

"Jrue, I think we'll see how he feels in the morning," Budenholzer said. "He actually got some basketball work in today and I think he's trending in a good direction."

On Lopez, he added: "There's not a new update and there never really has been a timeline. But he's doing good stuff in the weight room, doing good stuff to get better and he'll continue that."

Budenholzer also clarified the status of shooting guard Hood, who previously had a foot injury before undergoing scans on his hand.

"The X-rays the other day were inconclusive," Budenholzer said. "On examination we decided he couldn't play. We'll get another X-ray and look at it tomorrow and hope for the best."

The Bucks return to action on Tuesday against the lowly Detroit Pistons who are 1-5.

Novak Djokovic is unwilling to commit to January's Australian Open as the defending champion awaits confirmation on travel and entry requirements amid Victoria's vaccine mandate.

The state of Victoria, where the year's opening grand slam takes place at Melbourne Park, has introduced a vaccine mandate for professional athletes and across most industries due to the coronavirus pandemic.

The 2021 Australian Open went ahead, albeit in February instead of January, and without fans for most of the tournament following a snap lockdown of Melbourne due to COVID-19.

Last week, Australia prime minister Scott Morrison said unvaccinated players would be allowed to contest the slam if they completed two weeks in quarantine, though Victoria premier Dan Andrews dismissed those comments, insisting athletes would not be granted access unless they received the COVID-19 vaccine.

A record nine-time Australian Open champion, world number one Djokovic remains non-committal over his looming title defence.

"Well, I'm going to decide on whether I go to Australia or not after I see the official statement from Tennis Australia," Djokovic said as he prepares for the Paris Masters – his first tournament since losing to Daniil Medvedev in September's US Open final.

"Right now, we don't have any official announcement or statement. So until that's out, I won't be talking about this anymore, because I don't want to be part of the stories about the assumptions and what-ifs.

"When official condition requirements to travel to Australia and play in Australia are out, then obviously I'll see what I personally do with that, and also the bigger group of the players, you know, because the situation is obviously different in Australia than most parts of the world."

World number two Medvedev also refused to confirm his Australian Open participation.

"I always said it, that I really like Novak's answer about this. I want to keep my medical, no matter if it's about vaccine, leg injury, head injury... I want to keep my medical private for a reason," Medvedev said.

"I feel like tennis is such a brutal sport where you're always one on one against your opponent, and any information you give him can go against you.

"If you're playing Australia, it's obvious you're vaccinated. So that's why I said I'm willing to play Australia, but I won't say if you'll see me there, but we're going to see in January."

World number one Novak Djokovic said he will return to action at the Paris Masters blessed to be a more "humble" tennis player.

The Serbian makes his first appearance since his US Open final defeat to Daniil Medvedev at the ATP 1000 tournament in the French capital.

That defeat in New York cost Djokovic the chance to become only the third man to win a singles calendar slam by winning all four majors in the same year.

Djokovic also missed the opportunity to move top of the all-time Grand Slam tournament winners list and remains joint-top alongside Roger Federer and Rafael Nadal with 20 titles.

However, the 34-year-old – whose status for the 2021 Australian Open remains unknown – was phlegmatic when he reflected on his loss to Russian world number two Medvedev.

"In a most ideal scenario, I would have won all four of them," Djokovic told a media conference. "Knowing I was so close gives me great encouragement for the future, but it also makes me feel humble about my game, about my career.

"It gives me a kind of reality check where I have to go back to the practice court and really understand what needs to be done so that I could improve.

"This was not an ordinary loss considering the circumstances. I have learned over the years to deal with losses in such way that I treat them as great opportunities for growth.

"I feel that the US Open loss in the final has arrived arguably at the worst or at the best time for me, in a way.

"I'm disappointed that I lost the match, but I feel like I was blessed to experience love from the crowd and support from the stadium that I have never experienced before in my life in New York, and actually not in many places around the world.

"That kind of energy that I received from the crowd from the moment I stepped on the court until I stepped out is a win for life."

Djokovic, who has won four of the last eight Paris Masters tournaments, claimed the prospect of ending the year as the world number one ahead of Medvedev will motivate him.

Should he do so then Djokovic would leapfrog Pete Sampras for the most year-end number one finishes in history with seven.

He will face either Italian Fabio Fognini or Hungarian Marton Fucsovics having received a bye through the first round.

"The year-end number one is on the line between Medvedev and myself, and I'm in a pretty good position," added Djokovic, who has won 85 ATP tour titles.

"That's obviously the goal for the end of the season other than trying to do well in the Davis Cup with the national team. So hopefully I can have a strong finish of the season and clinch that year-end number one.

"I’m pleased to be back. I have been training really well the past couple of weeks. And I have had plenty of success in Paris over the years, so that gives me enough reason to believe that I can do well.

"The lack of match play could be dangerous, so I have to really make sure that I start off my first match very well with a good intensity and build my form."

Donna Vekic ended a personal trophy drought as she beat Clara Tauson in the WTA Courmayeur Open final in Italy on Sunday.

The 7-6 (7-3) 6-2 victory saw Croatian Vekic secure a third WTA Tour title of her career, and a first since 2017 when she triumphed at the Nottingham Open.

Tauson, who beat Jelena Ostapenko to win the Luxembourg Open in September, was unable to add to the two WTA titles she has won this year.

An unsteady start from both players saw service breaks in each of the first four games. Vekic finally held at the third attempt, before breaking Tauson again.

At 5-2 down in the first set, Tauson came alive, finally holding serve before breaking Vekic for a third time. The 18-year-old briefly showed the heart that had seen her save five match points in her semi-final victory over Liudmila Samsonova as she denied Vekic three set points.

The main issue for the 18-year-old Dane in the first set was her first serve, on which she only won 52 per cent of points, compared to Vekic's 79.2 per cent success rate.

Having forced a tie-break, Tauson gave herself a mountain to climb again as her opponent won the first six points. Despite a mini fightback from the teenager, Vekic was able to finally see the first set out.

The 25-year-old, who had not lost a set on her way to the final, broke again in the third game of the second set. Tauson had fought from a set down in both her quarter-final and semi-final, but she was unable to repeat the trick as Vekic eased to another straight-sets victory.

Marin Cilic won his 20th title on the ATP Tour by battling past Taylor Fritz in the final of the St Petersburg Open on Sunday.

A decade on from lifting the trophy for the first time, Cilic outlasted his American opponent 7-6 (7-3) 4-6 6-4 in a gruelling contest lasting two hours and 23 minutes.

It took the Croatian to four tournament wins on Russian soil, the 33-year-old having also twice won the crown in Moscow, while it also saw him join truly elite company in the men's game.

Only five other active male players have won 20 or more titles: Roger Federer (103), Rafael Nadal (88), Novak Djokovic (85), Andy Murray (46) and Juan Martin del Potro (22).

"Coming 10 years after winning in 2011 and also winning now, it's so, so special for me, especially this part of my career," said Cilic. "Having now a family, two sons, I want to absolutely dedicate this trophy to my newborn son."

Cilic had the chance to reach 20 titles last week in Moscow, only to lose in straight sets to home favourite Aslan Karatsev.

With 12 aces and 78 per cent of first-serve points won, the former world number three was aggressive in his efforts to make sure this was not another missed opportunity.

After taking the first set, Cilic twice led by a break in the second but allowed Fritz to level the contest and keep alive his hopes of a first title since Eastbourne two years ago.

Fritz went a break ahead in the decider but Cilic battled back to level at 4-4. A double fault from the world number 28 gave Cilic the chance to serve out the contest, and he duly obliged, converting his first match point with a volley.

Anett Kontaveit failed to read the script as she beat Simona Halep to win the Transylvania Open and qualify for the WTA Finals for the first time.

Kontaveit went into Sunday's final knowing victory over top seed Halep would earn her the last place in the season-ending tournament in Guadalajara.

The Estonian duly denied Ons Jabeur a WTA Finals spot, beating Romanian home favourite Halep 6-2 6-3 in Cluj.

Second seed Kontaveit has now come out on top in 10 consecutive matches, having won the Kremlin Cup last weekend, and this was her fourth title of a stellar season.

Halep had not dropped a set in her previous three meetings with Kontaveit, but the former world number one was soundly beaten to miss out on a fourth title on home soil – five years after her last in Bucharest.

The 25-year-old Kontaveit took her run to 26 victories in her last 28 matches, winning 70.6 per cent of points behind her first serve to Halep's 44.1 per cent.

Kontaveit broke three times in a one-sided first set and fought back from 2-0 down in the second to continue her brilliant run.

Halep has not won a title since September 2020, having been unfortunate with injuries this year.

Alexander Zverev captured his fifth title of the season at the Vienna Open after defeating Frances Tiafoe 7-5 6-4 in Sunday's final.

The Olympic champion claimed more silverware in Vienna, having also triumphed in Madrid, Cincinnati and Acapulco in 2021.

The world number four, who claimed his 300th tour-level career win against Alex de Minaur earlier in the week, is now 25-2 since exiting the fourth round at Wimbledon in July.

Tiafoe was appearing in his first ATP 500 final having defeated Stefanos Tsitsipas, Diego Schwartzman and Jannik Sinner along the way.

The world number 49 stuck with Zverev during a tight opening set, in which breaks were exchanged early on.

However, the German broke again in game 12 to draw first blood, and went on to hit eight aces during the second set.

Tiafoe produced an inspired turnaround from 5-2 down in the second set of his semi-final victory over Sinner.

But there was to be no fairytale finish for the American, who was seeking a second ATP title and first since the 2018 Delray Beach Open.

Zverev subsequently held his nerve to move level with Casper Ruud on five titles for the season, the most on the ATP Tour this year.

Milwaukee Bucks coach Mike Budenholzer begrudgingly applauded the San Antonio Spurs' effectiveness as they "made it hard" on Giannis Antetokounmpo in a surprise 102-93 win.

NBA champions the Bucks have now suffered consecutive defeats, with the loss to the Spurs coming on the back of a 113-108 reverse to the Minnesota Timberwolves.

The Spurs (2-4) trumped the Bucks (3-3) on the road in Milwaukee partly thanks to point guard Dejounte Murray, who scored 16 of his 23 points in the final period.

Murray entered the contest having put up 44 points, 22 rebounds and 23 assists over his previous two games – the only Spurs player in the past 30 seasons to have had at least 40 points, 20 rebounds and 20 assists over a two-game span, according to Stats Perform.

Antetokounmpo top-scored for the Bucks, posting a double-double of 28 points and 13 rebounds, yet he and Khris Middleton accounted for 11 of their 19 turnovers, which converted to 21 points for the Spurs.

While Budenholzer was keen to emphasise the need for collective effectiveness, he expects better from two of his most-dependable stars.

"It's just a tough night," Budenholzer told reporters. "I think we turned it over too much. Both those guys [Antetokounmpo and Middleton] included. We probably didn't shoot it well enough.

"And credit to San Antonio. They found a way to get a win and they made it hard on Khris, they made it hard on Giannis, they contested our shooters. I think Giannis and Khris can both be better, but we've got to be better around them, too.

"It wasn't a pretty game. I think defensively, probably, that should be enough to hold them to 102 [points] and 41 [per cent shooting].

"The corner three that [Keldon] Johnson made, they found a way to make some timely baskets. We needed that timely stop.

"We probably needed one or two more stops in a timely moment and they made a couple of timely baskets and they were able to get the win."

But while Budenholzer seemed frustrated with his own team, Antetokounmpo preferred to simply acknowledge the great sharp-shooting on display from the Spurs, accepting that sometimes the other team is just better.

"They made some shots," he added. "They made some shots late. One from the corner, one from the wing on top of me.

"They made some big shots. You've just got to tip your hat. They played well."

Golden State Warriors head coach Steve Kerr joked the franchise should trade superstar Stephen Curry amid his fourth-quarter struggles.

Curry scored 20 points in 27 minutes as the Warriors routed the rebuilding Oklahoma City Thunder 103-82 in the NBA on Saturday.

The two-time MVP entered the contest having not scored in the fourth quarter of his previous three games and Curry did not register a point in the final period again, though he did not have to as he was afforded rest.

After the Warriors improved to 5-1, Kerr jokingly told reporters: "We should trade him."

Warriors star Draymond Green almost put up a triple-double, finishing with 14 points, 11 rebounds and eight assists at home to the Grizzlies.

Green was satisfied post-game thanks to the NBA's new rules, which go against offensive players initiating contact or flailing while trying to draw foul calls.

"Can I also say how satisfying it's been to watch the game of basketball without all those bulls*** calls," Green said. "I'm sorry, I'm not supposed to curse in interviews, right? Can I say how satisfying it is to watch the game without all those terrible calls. Guys cheating the game and grabbing guys and getting the foul. I've been really enjoying watching basketball this year.

"I kind of had stopped watching the NBA a bit because it was just too flailing and flopping and guys cheating the game and getting free throws. So I think that's been great. I would be remiss if I didn't mention that because I think that's been fantastic."

The new rules have particularly impacted Brooklyn Nets superstar James Harden and Green mentioned him specifically.

"James is one of the best at it," Green said. "At driving and drawing fouls, drawing fouls from the three-point line, he's one of the best at it. So I definitely remember those games of him going 24-for-24 from the free-throw line.

"And when you got a guy that shifty, and the moment you touch him they can hook and you're called for a foul, it's impossible to guard. You started to see a lot of guys master it, but they all learned from James for sure because he was the master before anybody else ever picked it up."

Curry, who improved his career three-point tally against the Thunder to 156 – his best second tally against any opponent, added: "I've been watching around the league and for the most part, I'd say about 9 out of 10 calls that used to go the other way are not, for good reason.

"There's probably some that are still in that gray area where they'll get more consistent, but it's great for the game. I know a lot of fans are loving it. The defensive-minded players are loving it, for us to put the ball in the basket, focus on that. I've tried to my entire career so I don't think it's a huge adjustment, but I like it."