Switzerland's Stanislas Wawrinka claimed his first Grand Slam title in dramatic fashion on Sunday when he upset injury-troubled world number one Rafael Nadal in the Australian Open final.

The eighth seed roared through the first two sets and overcame the distraction of a back injury to Nadal, and then the loss of the third set, to take it 6-3, 6-2, 3-6, 6-3 in two hours 21 minutes.

Manchester United smashed the club's transfer record to sign Juan Mata from Chelsea for 37.1 million pounds ($61.2 million) on Saturday, giving the beleaguered English Premier League champions a major lift.

The Spain midfielder was deemed surplus to requirements at Chelsea after losing his place in the team since Jose Mourinho's return as manager last summer.

Li Na said she was ready to work hard to become world number one Sunday after clinching a popular Australian Open victory which looks set to accelerate China's tennis boom.

The Chinese star will return to third in the rankings when they are released on Monday, just 11 points behind second-placed Victoria Azarenka, after downing Dominika Cibulkova for her -- and Asia's -- second Grand Slam singles title.

Manchester City manager Manuel Pellegrini underlined the importance of Argentine international striker Sergio Aguero following his hat-trick in the 4-2 FA Cup fourth-round victory over Watford.

Aguero took his goal tally to six in four games since his month-long lay-off with a calf injury as City came from 2-0 down to overcome the Championship club on Saturday and book a place in the fifth round.

Brendan Rodgers believes Liverpool's ruthless FA Cup victory at Bournemouth demonstrates how far his side have come since last season's shock exit at the hands of League One minnows Oldham.

Rodgers' team claimed a place in the fifth round after safely negotiating a testing trip, eventually overcoming Eddie Howe's battling Championship side 2-0 thanks to goals from Victor Moses and Daniel Sturridge on Saturday.

World and Olympic 100m champion Shelly-Ann Fraser-Pryce, targeting her first athletics World Indoor Championships, opened her 2014 season with an unusual outdoor 60m on Saturday.

Fraser-Pryce won the special event at a meeting in Kingston in a time of 7.11 seconds.

Carmelo Anthony poured in a Knicks-record 62 points on Friday as New York emphatically ended a five-game NBA losing streak with a 125-96 win over Charlotte Bobcats.

Anthony's career-high night saw him sink 23 of 35 attempts from the field, six of 11 from three-point range and all 10 of his efforts from the free-throw line in 39 minutes on the floor. He also grabbed 13 rebounds.

Brazil was bracing Saturday for a first wave of nationwide demonstrations against staging the World Cup after activists from the radical protest group Anonymous went on social media calling for action.

With less than five months to go before the June 12 kick-off -- when the five-time champions and hosts take on Croatia -- Brazil is again facing the social rumblings which marred last year's Confederations Cup dress rehearsal.

Juan Mata is on the brink of becoming the most expensive player in Manchester United's history after Chelsea accepted the Spain midfielder's request to leave Stamford Bridge.

Mata will undergo a medical examination with United ahead of a club-record 37 million pound ($61 million) move to the Premier League champions, Chelsea manager Jose Mourinho said Friday.

Rafael Nadal continued his dominant streak over Roger Federer to reach the Australian Open final for the third time, beating the 17-time major winner 7-6 (4), 6-3, 6-3 Friday night to set up a championship decider against No. 8-seeded Stan Wawrinka.

Nadal now has won 23 of his 33 matches against Federer, including nine of 11 in the majors. The 27-year-old Spaniard is one victory away from being the first man in the Open era to win all four majors at least twice, and from joining Pete Sampras in second place on the list of all-time Grand Slam winners with 14.