Manchester City face a huge challenge if they are to reach the last eight of the Champions League for the first time ever by overturning a 2-1 first leg deficit when they travel to an in-form Barcelona on Wednesday.

The English champions were outplayed at home for the second season in a row at this stage of the competition three weeks ago and could have been even further behind travelling to the Catalan capital had Joe Hart not saved a Lionel Messi penalty in stoppage time at the Etihad.

Another return to Miami for LeBron James brought another thumping for his Cleveland Cavaliers at the hands of his former club as the Heat ripped their ex-teammate 106-92 Monday.

Dwyane Wade produced game highs of 32 points and five steals to spark the Heat, who won two NBA titles and reached four consecutive NBA Finals before James left last July to return to his home-region club.

Five-time Grand Slam winner Maria Sharapova needed six match points to grind out a 6-4, 6-3 win over Victoria Azarenka in a rare early marquee matchup at Indian Wells on Monday.

The 27-year old Russian appeared to be ready to close out the third round match in the eighth game of the second set but two-time Australian Open winner Azarenka decided she wasn't going down without a fight.

PAOK coach Angelos Anastasiadis has been fired from his post, the Greek Super League club announced Monday.

The announcement said that for the third time former PAOK and Greece international Giorgos Georgiadis will act as interim coach for the rest of the season.

Manchester United manager Louis van Gaal refused to comment on Wayne Rooney's boxing antics, but praised his captain for helping to inspire his side to a crucial 3-0 win over Premier League top-four rivals Tottenham.

A Sunday newspaper story claimed that Rooney had been knocked out by former United defender Phil Bardsley in a supposedly friendly boxing bout at Rooney's house last month.

Red Bull advisor Helmut Marko warned the team could pull out of Formula One over its rules and organisation after a disappointing opening race in Australia.

Marko said the Austrian team was "unhappy" with the current situation, as team principal Christian Horner called for new regulations to level the playing field.

Former champions Roger Federer and Rafael Nadal breezed through their Indian Wells openers and Serena Williams stepped up her comeback from a 14-year boycott with a similar crushing victory Sunday.

Second seed Federer opened his bid for a fifth Indian Wells title by easing to a 6-4, 6-2 second round victory over Argentina's Diego Schwartzman. Nadal also opened his campaign on a successful note, blitzing Igor Sijsling 6-4, 6-2 in the joint WTA and ATP hardcourt tournament.

Lewis Hamilton fought off teammate Nico Rosberg to give Mercedes a dominant victory in the season-opening Australian Grand Prix in Melbourne on Sunday.

Reigning world champion Hamilton held the upper hand with his faster Mercedes car to beat last year's race winner Rosberg by 1.3 seconds.

Arsene Wenger insists his Arsenal players believe they can overturn a 3-1 deficit against Monaco in the Champions League on Tuesday, but the Gunners manager is less confident about their chances of winning the Premier League.

Goals from Olivier Giroud, Aaron Ramsey and Mathieu Flamini secured a 3-0 win over West Ham that left Arsenal in buoyant mood ahead of their tricky last 16 second leg trip to Monaco in midweek.

Manchester City manager Manuel Pellegrini believes the Premier League title race is not over despite a damaging 1-0 defeat to relegation battlers Burnley at Turf Moor.

Burnley forward George Boyd scored the decisive goal with a superb half-volley to give the Clarets a deserved victory against the reigning champions on Saturday.