Big-serving Canadian Milos Raonic made a strong return to competition on Friday by beating Viktor Troicki 6-3, 7-5 to reach the third round of the Miami Open.
Top seed Dominic Thiem was knocked out the Rio Open in the first round on Tuesday, going down 6-3, 6-3 to Laslo Djere.
Rafael Nadal celebrated his 1,000th tour level match with a come-from-behind victory over German veteran Philipp Kohlschreiber to reach the fourth round of the Miami Open.
The Canadian's win sets up a semi-final clash with Del Potro on Saturday that will pit power against power.
She is the second Swiss player to win the tournament after Martina Hingis won the inaugural edition in 2001.
A summary of Thursday's play at the French Open.
A summary of sports events and sports persons, who made news on Monday
A summary of sports events and sports persons, who made news on Friday
There comes a moment in all great sporting careers when the puzzle fits together and for Kei Nishikori it arrived on a sweltering early September afternoon in New York.
Following badminton World No 1 Lee Chong Wei's provisional ban, Rediff.com brings you ten top sports persons who gave in to drugs - one of the mighty perils that has affected modern sporting culture.