Stan Wawrinka became the oldest U.S. Open men's champion in 46 years when he defeated world number one Novak Djokovic to claim a third Grand Slam title on Sunday.

The oldest winner of the men's tournament since 35-year-old Ken Rosewall in 1970 said a taste for pain helped him to victory and admitted he was shaking and at one point burst into tears before the match.

Angelique Kerber won the U.S. Open on Saturday, marking her rise to world number one with a gritty victory over Karolina Pliskova to add a second Grand Slam crown to her magical 2016 season.

"Being there as champion, this year, to hold this trophy, I can't say it in words," said Kerber, who added the U.S. Open crown to the Australian Open title she claimed in January.

Unbeaten Roman Gonzalez won the World Boxing Council super flyweight title with a 12-round unanimous decision over previously undefeated champion Carlos Cuadras on Saturday.

The 29-year-old Gonzalez became the first fighter from Nicaragua to win world titles in four weight divisions, surpassing his hero and mentor Alexis Arguello.

Gonzalo Higuain and Jose Callejon starred as Juventus and Napoli warmed up for their respective Champions League opening group games with comprehensive wins over Sassuolo and Palermo on Saturday. 

Bayern Munich's French international striker Kingsley Coman is fit again and trained Sunday ahead of the Bavarian outfit's Champions League Group D opener with Russians Rostov in midweek.

FIFA on Thursday dismissed appeals by Real Madrid and Atletico Madrid against a ban on registering new players in the next two transfer windows for irregularities in the signing of foreign players under 18.

The stadiums may be mostly empty but passionate fans and the enthusiastic Brazilian hosts insisted Thursday that the Rio Paralympics are off to a good start.

Only a smattering of seats were taken at the 60,000-capacity Engenhao stadium for the beginning of track and field events in South America's first Paralympics.

It may not require an overnight emergency operation, but Formula One will surely undergo some serious life-affirming surgery in the years ahead following this week’s multibillion-dollar takeover.

Third-seeded Stan Wawrinka defeated 2009 champion Juan Martin del Potro 7-6 (7/5), 4-6, 6-3, 6-2 to reach the semi-finals of the US Open in a Wednesday night match that trickled into Thursday.

Wawrinka, a two-time semi-finalist at Flushing Meadows, will face Kei Nishikori for a place in Sunday's championship match after the Japanese sixth-seed upset world number two Andy Murray 1-6, 6-4, 4-6, 6-1, 7-5.

President Barack Obama linked U.S. Olympic prowess to the country's racial and ethnic diversity Wednesday, as he urged young Southeast Asians to support inclusive societies.