An emotional Nick Kyrgios explained his motivations for donating to the effort fighting Australia's bushfires after helping his nation to victory over Germany at the ATP Cup.

Kyrgios beat Jan-Lennard Struff 6-4 7-6 (7-4) in Brisbane, sending down 20 aces after his pledge to give 200 Australian dollars to the bushfires effort for each service winner he hits in January.

Alex de Minaur – Kyrgios' team-mate at the event, who impressively came from a set down to defeat an ill-tempered Alex Zverev 4-6 7-6 (7-3) 6-2 – followed suit after Kyrgios tweeted his intention to help, while stars from other sports have also joined in.

Brisbane Heat captain Chris Lynn struck three sixes as he top-scored in his team's win over Hobart Hurricanes in the Big Bash League on Friday, with each maximum worth $250 to the recovery effort.

"I don't really care about the praise too much. I just think we've got the ability and platform to do something like that," Kyrgios told Amazon Prime when asked about the movement he inadvertently started.

"My home town is Canberra and we've got the most toxic air in the world at the moment, so it is pretty sad. It's tough."

Having appeared choked up at that point, Kyrgios added: "I just chucked up a tweet and everyone got behind it. It is bigger than tennis.

"It's going to all the families, firefighters, animals, everyone who is losing homes, losing families. It's a real thing.

Australia completed a 3-0 Group F win after Chris Guccione and John Peers beat German doubles pair Kevin Krawietz and Andreas Mies 6-3 6-4.

In the section's other match, Canada were similarly emphatic against Greece, with Denis Shapovalov winning a pair of tie-breaks to best Stefanos Tsitsipas after Felix Auger-Aliassime demolished Michail Pervolarakis 6-1 6-3.

Auger-Aliassime and Shapovalov then combined to win the doubles rubber against the same opponents, prevailing 6-2 6-3.

Great Britain and the United States both allowed leads to slip against Bulgaria and Norway respectively.

In Group C, Cameron Norrie beat world number 423 Dimitar Kuzmanov in three sets and Dan Evans made a fast start against Grigor Dimitrov to go a set up.

But Dimitrov prevailed 2-6 6-4 6-1 and he and Alexandar Lazarov triumphed after three tie-breaks against Jamie Murray and Joe Salisbury in the small hours of the Sydney morning.

Taylor Fritz beat Viktor Durasovic 6-2 6-2 and John Isner had the USA in charge of the second singles rubber when he took the opening tie break versus Casper Ruud, only for two match points and a second breaker to go against him. He eventually lost, going down 7-5 in the deciding set.

Ruud and Durasovic then recovered from dropping the first set to beat Austin Krajicek and Rajeev Ram 10-5 in a match tie-break in Perth.

Steve Darcis and David Goffin inspired Belgium to a 3-0 Group C win over Moldova, while Daniil Medvedev's 1-6 6-1-6-3 victory against Fabio Fognini helped clinch a 3-0 victory for Russia against Italy in Group D.

Croatia's hopes of defending their Davis Cup title took a huge early blow as they were beaten 3-0 by Russia in Madrid on Monday.

Champions a year ago, Croatia's chances of even progressing from the first stage in the 2019 Finals already look remote – with Rafael Nadal's Spain still to play in Group B.

Croatia took on Russia on centre court following the opening ceremony in a match-up that was hindered by key withdrawals ahead of the tournament.

Marin Cilic, who led Croatia to victory in 2018, missed out with injury, while Russia's Daniil Medvedev ducked out citing fatigue.

Russia dealt with the absence of their number one in far more convincing fashion than Croatia, though, with Borna Gojo comfortably eased out 6-3 6-3 by Andrey Rublev in the first of three contests.

The two remaining star names did battle next, but Russia again came out on top as Karen Khachanov rallied past Borna Coric 6-7 (4-7) 6-4 6-4.

And then Rublev and Khachanov teamed up for a straight-sets doubles success against Ivan Dodig and Nikola Mektic.

Elsewhere, there was an upset as Italy went down to Canada 2-1, with both Fabio Fognini and Matteo Berrettini beaten in singles play.

Vasek Pospisil, ranked 150th in the world, defeated Khachanov at the US Open and claimed another scalp against Fognini, before Berrettini was turned over by Denis Shapovalov.

Italy sent in their two stars for the doubles, where they gained a measure of revenge over Pospisil and Shapovalov, winning in three.

Belgium survived David Goffin's awful start to his rubber to win 2-1 against Colombia.

Steve Darcis had earlier seen off Santiago Giraldo in straight sets, but Goffin fell four games behind in the opener against Daniel Elahi Galan before staging a fightback.

He won 3-6 6-3 6-3, although Colombia got on the board with a doubles comeback from Juan-Sebastian Cabal and Robert Farah.

© 2020 SportsMaxTV All Rights Reserved.