Lewis Hamilton was well off the pace as Mercedes were jolted by their "poor start" to testing ahead of the new Formula One season.
Gearbox trouble meant Valtteri Bottas could only complete six laps in the morning in Bahrain, before team-mate Hamilton had a clearer run and ran through 42 laps in the afternoon.
However, reigning drivers' champion Hamilton was only 10th-fastest on the day, with Red Bull's Max Verstappen topping the time sheets, while Bottas was the slowest of all the 17 drivers involved.
Mercedes' trackside engineering director Andrew Shovlin declared: "It's been a poor start to the season from us.
"Once we got running it was clear we didn't have the car in the right balance window and, while we made some progress during the day, we're not happy with how the car is performing and it's pretty clear we have some work to do."
The Mercedes W12 is the car with which the team hope to land an eighth consecutive constructors' title, while Hamilton will be chasing a fifth successive drivers' championship and a record eighth overall.
Hamilton said: "Today definitely wasn't the cleanest of days that we've had, but these things are sent to try us.
"Everyone has worked extremely hard to get us here. We had that mishap in the morning which was very unfortunate for Valtteri in terms of losing time on track and the team is working hard to try and understand what that was.
"I think they did a great job to turn the car around. The second session wasn't without its challenges, but we exist to find solutions to the problems we're faced with."
Hamilton was affected by a sandstorm and said Mercedes would look to "take the positives" from their shaky day, with two more days of testing to come.
Positives were not immediately obvious, and Bottas said: "In recent years, things have been pretty much bulletproof so it's not a familiar experience."
However, the Finn added on the team's website: "I am confident we can recover and I’m looking forward to two good days over the weekend."
As well as testing, Bahrain will host the opening grand prix of the Formula One season, with that race scheduled for March 28.
Piastri prepared to give up Sprint victory in Brazil to benefit Norris
Oscar Piastri explained he would be willing to follow team orders to help out Lando Norris in his championship battle after claiming pole position for the Sprint at the Brazil Grand Prix.
Piastri surged to the front row for Saturday's Sprint, edging McLaren team-mate Norris in the final moments, after the Briton had led proceedings throughout.
Norris was pipped by two hundredths of a second, though is in prime position to close the gap to Max Verstappen in the drivers' standings.
Verstappen finished fourth, but is set to face a five-place grid drop for Sunday's race after Red Bull elected to change his power unit for the sixth time this season.
Norris is currently 47 points behind the Dutchman in the drivers' championship, with this weekend offering the perfect opportunity for him to close the gap at the summit.
Despite his impressive effort, Piastri confirmed that the team is his priority, and he will focus on their overall result before they switch attention to the grand prix on Sunday.
“We’ll see what the pace is like for both of us tomorrow. I think first and second is the first objective, and then we’ll see what order it is," Piastri told Sky Sports.
“I know that I’m not in the running for the drivers’ standings and for the team, it doesn’t matter which way around we are. I know that’s the case and we’ll see.”
Quizzed further on whether he would give up the win outright, he added: “Yes. I’ve said I would from when we first had these discussions.
"It would be nice to win, but it’s one point difference, and it’s not the main race so we’ll see.
“Lando needs the points in the drivers’ standings a lot more than I do, but of course I still want to win.
"So if I put in the effort and have good pace, I’m sure that won’t go unnoticed, but let’s see.”
Charles Leclerc completed the top three for Saturday's sprint, with Verstappen just behind, while Carlos Sainz, the winner at the Mexican Grand Prix last weekend, took fifth.
Mercedes' George Russell came in sixth, while the Alpine of Pierre Gasly finished seventh.
Liam Lawson, Alex Albon and Ollie Bearman, who replaced the unwell Kevin Magnussen at Haas for the Sprint, rounded out the top 10.
Brazilian Grand Prix: Verstappen dismisses 'annoying and biased' critics
Max Verstappen has dismissed critics of his tussles with Formula One title rival Lando Norris ahead of this weekend's Brazilian Grand Prix.
Verstappen was on the receiving end of two separate 10-second penalties following a pair of incidents with Norris during last weekend's Mexican Grand Prix.
He was given one penalty for pushing Norris off at Turn 4, and another for leaving the track and gaining an advantage as he reclaimed track position over his rival.
The moment came after the title contenders had been involved in another battle in Austin a week prior, which saw Norris handed a 10-second time penalty.
Verstappen's racing tactics have come under the spotlight following two incidents in the last two races, but he labelled those critics as "annoying" and "biased".
"I don't listen to those individuals. I just do my thing," Verstappen told Sky Sports. "I'm a three-time world champion. I think I know what I'm doing.
"People that are objective and close to me. And not just there to stir.
"Some people are just being very annoying, and I know who these people are. I don't really pay a lot of attention to them anyway.
"And I think I've got to this stage of my career with the right people supporting me and making my own decisions. So, I think I know what I'm doing."
Verstappen leads the drivers' championship by 47 points over McLaren's Norris, though the upcoming sprint this weekend offers the Briton an opportunity to close the gap.
But Verstappen could be on the end of another penalty in one of the final four races of the season, after reports of Red Bull giving him a new engine surfaced.
Those reports came after the three-time world champion was plagued by issues in Mexico, as he was forced to switch to another engine in his existing pool.
"I haven't heard anything yet," Verstappen said. "It's not [been] discussed. But I know that I will have to take one at some point, so we'll see."
With the overtaking opportunities on offer in Brazil, this weekend could be the best opportunity for Verstappen to get back on track.
He has now gone nine races without a pole position and 10 without a win, his worst streak since the penultimate round in 2020 when he went 17 qualifying rounds without a pole and 11 consecutive races without a victory.
Quizzed on whether this circuit, where he won in 2023, could be the ideal chance for him to return to winning form, Verstappen said: "Honestly, it's something that is always unknown.
"You think that one particular track is the best place to take an engine or whatever penalty, but it's never guaranteed. It's a possibility."
DRIVERS TO WATCH
Max Verstappen – Red Bull
While much of the conversation off the track has been on Verstappen's aggressive driving, he will be hoping to do his talking on the circuit this time around.
The Dutchman emerged victorious at Interlagos last year. However, the same driver has not won the Brazilian Grand Prix twice in a row since Nico Rosberg did so for Mercedes in 2014 and 2015.
Verstappen also has the fourth-most points at the circuit (136), behind only Fernando Alonso (139), Sebastian Vettel (154) and Lewis Hamilton (185).
Lewis Hamilton – Mercedes
This weekend could be an emotional one for Hamilton, who returns to a track where he made history in 2008.
Saturday marks 14 years since Hamilton became world champion for the first time in his career, finishing fifth in Sao Paulo after passing Timo Glock on the final lap to snatch the victory away from Ferrari's Felipe Massa.
On the anniversary of his first title success, the Briton will also get behind the wheel of Ayrton Senna's title-winning McLaren between races, marking 30 years since the Brazilian's death.
The winner in Brazil has started from pole position in eight of the last 10 races, though Hamilton's triumph in 2021, in which he started 10th, and Vettel's second place start in 2017 are the only exceptions.
Only Michael Schumacher, Carlos Reutemann (both four) and Alain Prost (six) have more wins in Brazil than Hamilton (three, level with Vettel), and he will be looking to cap a memorable weekend with his third victory of the season.
CHAMPIONSHIP STANDINGS
Drivers
1. Max Verstappen (Red Bull) – 362
2. Lando Norris (McLaren) – 315
3. Charles Leclerc (Ferrari) – 291
4. Oscar Piastri (McLaren) – 251
5. Carlos Sainz (Ferrari) – 240
Constructors
1. McLaren – 566
2. Ferrari – 537
3. Red Bull – 512
4. Mercedes – 366
5. Aston Martin – 86
Norris calls for 'cleaner battle' with Verstappen ahead of Sao Paulo Grand Prix
Lando Norris has called for a “cleaner battle” with title rival Max Verstappen ahead of the Sao Paulo Grand Prix on Sunday.
Verstappen received two 10-second penalties for incidents early on in last Sunday's race in Mexico, which was won by Carlos Sainz.
He was awarded the first penalty for forcing Norris off the track at Turn Four on the 10th lap, while the second was given for leaving the track four corners later.
It meant the Dutchman finished in sixth position while Norris capitalised to finish second. Now, the McLaren driver wants to see fairer racing from his rival at Red Bull.
"It's what I said going into Mexico, I want clean, fair racing," Norris told Sky Sports.
"And that's what I do, that's what I provide and that's how I race. That's how I've always raced in my career. It's not for me to change, it's for the other side to change."
"I stayed out of trouble and did my job also, which is that. But every weekend is a new weekend. I don't know what to expect this weekend.
"Obviously, I hope, I expect a cleaner battle than what we had. But it's not up to me. I don't make the rules, I don't decide the penalties, I didn't do it. I just drive. The stewards see the race and they did a good job."
The result left McLaren in the lead in the Constructor’s Championship, ahead of Ferrari and Red Bull. While in the individual driver standings, Verstappen’s lead was cut to 47 points by Norris.
The 24-year-old was unfazed by how the nature of the rivalry might impact his personal relationship with Verstappen, however.
"Some of this is not personal," said Norris when asked if his relationship with Verstappen has changed.
"He wants to win the championship, I want to win the championship. But the way he can win the championship is a very different way to how I need to win the championship.
"Whether that changes how we are personally, it probably will a little bit, but this is not my concentration or place for concern at the minute."
Norris last took the chequered flag in September at the Singapore Grand Prix and has finished on the podium in one of the two races since. Verstappen, meanwhile, has failed to win a race since June when he finished first in Spain.
It leaves Norris feeling confident he can clinch his maiden title with four races left due to a number of reasons.
"My team, how we're performing every weekend. I think I'm driving very well, both in qualifying and races,” he explained.
“I feel like I've done a strong job over the last few months. I've still made mistakes and I've still not been perfect, but there's also times when we shouldn't have won and we shouldn't have had pole position and certain things.
"We did because I've been doing a good job - which is rare, but the confidence I've had in myself recently has helped me to keep believing.
"Probably the lack of performance that Red Bull have at the minute - both of them need to go together.”
SportsMax is the Caribbean sports channel of choice, committed to providing sporting content of the highest quality to the Caribbean, delivered by a team of highly innovative, passionate and qualified professionals.
(876) 619-7629
digitalmedia@sportsmax.tv
