Roger Federer, playing in his final event before the U.S. Open, surged into the third round of the ATP and WTA hard court tournament Tuesday by beating Juan Martin del Potro in straight sets.

The Swiss star, who turned 30 earlier this month, cruised past del Potro 6-3, 7-5 for his first win over the Argentine in their last three matches which included the 2009 U.S. Open final. Federer had won their first six meetings, dating back to Wimbledon in 2007.

London's Olympic Park is undergoing its first real sporting test, hosting its debut tournament as six international sides give the new Basketball Arena a run out ahead of the 2012 Games.

London is staging a series of test events this summer to give their venues a practice go and allow organizers to iron out any problems before the Games begin next July.

Star AC Milan forward Zlatan Ibrahimovic could miss the start of the new Serie A season with a twisted ankle, his club AC Milan revealed.

The big Swede suffered the injury in training and Milan say he will need two weeks to recover, meaning he should miss their first match.

Arsene Wenger could be in trouble with UEFA after repeatedly communicating with the Arsenal bench during his side's 1-0 win over Udinese in the Champions League play-off first leg.

Wenger was forced to watch the match from the Emirates Stadium stands as the Gunners boss served a touchline ban for abusing Swiss referee Massimo Busacca in the aftermath of last season's stormy Champions League defeat at Barcelona.

AC Milan have suffered a blow to their pre-season preparations as star forward Zlatan Ibrahimovic twisted his ankle in training, the club revealed on Tuesday.

Milan said they would evaluate the injury over the coming days but added that they expect the Swede to be fit for their season opener against Cagliari on August 27.

Roberto Mancini warned Manchester City's title rivals that Sergio Aguero will get even better after the Argentina striker marked his debut in spectacular style.

City's £38 million signing from Atletico Madrid scored twice and set up another after climbing off the bench in the 4-0 defeat of Swansea on Monday.

Cesc Fabregas' long awaited return to his boyhood club finally was finalized Monday when he signed a five-year contract with European champion Barcelona.

"It took a lot of years, months, days to get here ... it's nice to be home after eight years," the former Arsenal captain said in Catalan during his presentation to fans at Camp Nou, where he repeatedly kissed the Barcelona crest on his new No. 4 jersey.

Real Madrid and Barcelona drew 2-2 in the first leg of the Spanish Supercup on Sunday in front of 80,000 fans in Madrid's Santiago Bernabeu as the two bitter rivals kicked off the new season.

Mesut Ozil gave Real a 13th-minute lead before David Villa and Lionel Messi put Barcelona ahead at the break.

Top-ranked Novak Djokovic won the Rogers Cup on Sunday for his ninth tournament victory of the year and record fifth in a season in an ATP Masters 1,000 event, beating Mardy Fish 6-2, 3-6, 6-4.

The 24-year-old Serb, the Australian Open and Wimbledon champion, is 29-0 this year on hard courts and 53-1 overall. He also won the Rogers Cup in 2007.

Eight weeks into her comeback, Serena Williams not only believes she can be as good as she once was. She can be better.

The 29-year-old American star made a pretty good point by capturing the Rogers Cup in commanding fashion Sunday, dispatching 10th-seed Samantha Stosur of Australia 6-4, 6-2 for her first Canadian crown since 2001.