2012 Olympics: Roger Federer, Novak Djokovic, Andy Murray into Semifinals

Roger Federer, Novak Djokovic, Andy Murray and Juan Martin Del Potro all have one thing in common—they all scored straight-set wins on Thursday and punched a ticket to the semifinals of the 2012 Olympics on Friday.

Home-favorite Andy Murray opened the day of quarterfinal action with a 6-4, 6-1 routine win over Spaniard Nicolas Almagro in under an hour.  Murray, the No. 3 seed of the tournament and runner-up in last month's Wimbledon final, will now face the No. 2 seed Novak Djokovic.

Djokovic also put on a good display in his quarterfinal match against Frenchman Jo-Wilfried Tsonga in the second match on Centre Court, winning 6-1, 7-5 in front of a crowd of over 14,000.  The Serb was the bronze medalist in the Beijing Olympics and is looking to reach his first Olympic final.

Friday's semifinal will be a rematch of the semifinal from this year's Australian Open, where Djokovic emerged victorious after a tight five-set showdown.  Djokovic leads Murray head-to-head 8-5.

The other semifinal of the day will feature No. 1 seed Roger Federer against No. 8 seed Juan Martin Del Potro.  The two famously met in the final of the 2009 US Open where the then-20 year-old Argentinian upset the five-time champion in a five-set thriller.  Since then, Federer has won six of their last seven meetings, including a comeback win from two sets down at this year's French Open.