World number one and defending champion Serena Williams will face Maria Sharapova in the Australian Open quarter-final.

Barcelona star Leo Messi races against speedster Usain Bolt and American Pharoah, the first horse to win the Grand Slam of American horse racing, for the Sports Illustrated's annual prize.

"Fantastic Friday" at the US Open sees Serena Williams, Novak Djokovic and Roger Federer in starring roles.

Serena Williams defeats her sister Venus at the US Open to move within two victories of her first calendar Grand Slam.

Serena Williams tries to reach the US Open fourth round while Novak Djokovic and Rafael Nadal also seek last-16 berths.

Novak Djokovic and Serena Williams as well as nine-time champion Rafael Nadal and in-form Andy Murray serve up a Saturday special at the French Open.

Rafael Nadal remains on course for a 10th French Open title with a straight-sets victory over fellow Spaniard Nicolas Almagro in the second round.

Andy Murray and Heather Watson face familiar opponents in the French Open second round on Thursday.

Serena Williams punctuates points with theatrics worthy of a Grand Slam final. There were squeals, knee kicks, pirouettes and fist pumps, sometimes all at once.

The decision put her opponent, Simona Halep, into the final against Jelena Jankovic, who beat Sabine Lisicki in three sets.