Sony Open Tennis | Tue., March 25, 2014

  • Novak Djokovic of Serbia returns a ball hit by Tommy Robredo of Spain at the Sony Open Tennis on Key Biscayne, Miami, Florida, March 25, 2014. Djokovic defeated Robredo in straight sets. CHARLES TRAINOR JR / STAFF PHOTO

  • Tommy Robredo of Spain returns a ball hit by Novak Djokovic of Serbia at the Sony Open Tennis on Key Biscayne, Miami, Florida, March 25, 2014. Djokovic defeated Robredo in straight sets. CHARLES TRAINOR JR / STAFF PHOTO

  • Tommy Robredo of Spain returns a ball hit by Novak Djokovic of Serbia at the Sony Open Tennis on Key Biscayne, Miami, Florida, March 25, 2014. Djokovic defeated Robredo in straight sets. CHARLES TRAINOR JR / STAFF PHOTO

  • Novak Djokovic of Serbia returns a ball hit by Tommy Robredo of Spain at the Sony Open Tennis on Key Biscayne, Miami, Florida, March 25, 2014. Djokovic defeated Robredo in straight sets. CHARLES TRAINOR JR / STAFF PHOTO

  • Novak Djokovic of Serbia retruns a ball hit by Tommy Robredo of Spain at the Sony Open Tennis on Key Biscayne, Miami, Florida, March 25, 2014. Djokovic defeated Robredo in straight sets. CHARLES TRAINOR JR / STAFF PHOTO

  • Novak Djokovic of Serbia returns a ball hit by Tommy Robredo of Spain at the Sony Open Tennis on Key Biscayne, Miami, Florida, March 25, 2014. CHARLES TRAINOR JR / STAFF PHOTO

  • Kei Nishikori of Japan returns a ball hit by David Ferrer of Spain at the Sony Open Tennis on Key Biscayne, Miami, Florida, March 25, 2014. Nishikori defeated Ferrer in three sets. CHARLES TRAINOR JR / STAFF PHOTO

  • David Ferrer of Spain returns a ball hit by Kei Nishikori of Japan at the Sony Open Tennis on Key Biscayne, Miami, Florida, March 25, 2014. Nishikori defeated Ferrer in three sets. CHARLES TRAINOR JR / STAFF PHOTO

  • David Ferrer of Spain, shirtless between games as he plays Kei Nishikori of Japan at the Sony Open Tennis on Key Biscayne, Miami, Florida, March 25, 2014. Nishikori defeated Ferrer in three sets. CHARLES TRAINOR JR / STAFF PHOTO

  • David Ferrer of Spain returns a ball hit by Kei Nishikori of Japan at the Sony Open Tennis on Key Biscayne, Miami, Florida, March 25, 2014. Nishikori defeated Ferrer in three sets. CHARLES TRAINOR JR / STAFF PHOTO

  • Alexandr Dolgopolov of Ukraine returns ball hit by Stanislas Wawrinka of Switzerland at the Sony Open Tennis on Key Biscayne, Miami, Florida, March 25, 2014. Dolgopolov defeated Wawrinka in three sets. CHARLES TRAINOR JR / STAFF PHOTO

  • Alexandr Dolgopolov of Ukraine returns ball hit by Stanislas Wawrinka of Switzerland at the Sony Open Tennis on Key Biscayne, Miami, Florida, March 25, 2014. Dolgopolov defeated Wawrinka in three sets. CHARLES TRAINOR JR / STAFF PHOTO

  • Stanislas Wawrinka of Switzerland returns ball hit by Alexandr Dolgopolov of Ukraine at the Sony Open Tennis on Key Biscayne, Miami, Florida, March 25, 2014. Dolgopolov defeated Wawrinka in three sets. CHARLES TRAINOR JR / STAFF PHOTO

  • Alexandr Dolgopolov of Ukraine returns a shot to Stanislas Wawrinka of Switzerland at the Sony Open Tennis on Key Biscayne, Miami, Florida, March 25, 2014. Dolgopolov defeated Wawrinka in three sets. CHARLES TRAINOR JR / STAFF PHOTO

  • Alexandr Dolgopolov of Ukraine returns a shot to Stanislas Wawrinka of Switzerland at the Sony Open Tennis on Key Biscayne, Miami, Florida, March 25, 2014. Dolgopolov defeated Wawrinka in three sets. CHARLES TRAINOR JR / STAFF PHOTO

  • Alexandr Dolgopolov of Ukraine returns a shot to Stanislas Wawrinka of Switzerland at the Sony Open Tennis on Key Biscayne, Miami, Florida, March 25, 2014. Dolgopolov defeated Wawrinka in three sets. CHARLES TRAINOR JR / STAFF PHOTO

  • Petra Kvitova of Czech Republic returns a ball hit by Maria Sharapova of Russia at the Sony Open Tennis on Key Biscayne, Miami, Florida, March 25, 2014. Sharapova defeated Kvitova in straight sets. CHARLES TRAINOR JR / STAFF PHOTO

  • Maria Sharapova of Russia returns a ball hit by Petra Kvitova of Czech Republic at the Sony Open Tennis on Key Biscayne, Miami, Florida, March 25, 2014. Sharapova defeated Kvitova in straight sets. CHARLES TRAINOR JR / STAFF PHOTO

  • Maria Sharapova of Russia screams after a point as she plays Petra Kvitova of Czech Republic at the Sony Open Tennis on Key Biscayne, Miami, Florida, March 25, 2014. Sharapova defeated Kvitova in straight sets. CHARLES TRAINOR JR / STAFF PHOTO

  • Maria Sharapova of Russia returns a ball hit by Petra Kvitova of Czech Republic at the Sony Open Tennis on Key Biscayne, Miami, Florida, March 25, 2014. Sharapova defeated Kvitova in straight sets. CHARLES TRAINOR JR / STAFF PHOTO

  • Maria Sharapova of Russia cools her head between games as she plays Petra Kvitova of Czech Republic at the Sony Open Tennis on Key Biscayne, Miami, Florida, March 25, 2014. Sharapova defeated Kvitova in straight sets. CHARLES TRAINOR JR / STAFF PHOTO

  • Maria Sharapova of Russia returns a ball hit by Petra Kvitova of Czech Republic at the Sony Open Tennis on Key Biscayne, Miami, Florida, March 25, 2014. Sharapova defeated Kvitova in straight sets. CHARLES TRAINOR JR / STAFF PHOTO

  • Defending 2013 champion Andy Murray of Great Britain returns against Jo-Wilfred Tsonga of France during the second set of their fourth round match at the Sony Open in Key Biscayne on March 25, 2014. Pedro Portal / Staff Photo

  • Roger Federer of Switzerland arrives to his match against Richard Gasquet of France before their fourth round match at the Sony Open in Key Biscayne on March 25, 2014. Pedro Portal / Staff Photo

  • Roger Federer of Switzerland returns against Richard Gasquet of France during their fourth round match at the Sony Open in Key Biscayne on March 25, 2014. Pedro Portal / Staff Photo

  • Richard Gasquet of France returns against Roger Federer of Switzerland during their fourth round match at the Sony Open in Key Biscayne on March 25, 2014. Pedro Portal / Staff Photo

  • Roger Federer of Switzerland returns against Richard Gasquet of France during their fourth round match at the Sony Open in Key Biscayne on March 25, 2014. Pedro Portal / Staff Photo

  • Richard Gasquet of France returns against Roger Federer of Switzerland during their fourth round match at the Sony Open in Key Biscayne on March 25, 2014. Pedro Portal / Staff Photo

  • Roger Federer of Switzerland returns against Richard Gasquet of France during their fourth round match at the Sony Open in Key Biscayne on March 25, 2014. Pedro Portal / Staff Photo

  • Roger Federer of Switzerland returns against Richard Gasquet of France during their fourth round match at the Sony Open in Key Biscayne on March 25, 2014. Pedro Portal / Staff Photo

  • Roger Federer of Switzerland signs autographs to fans after defeating Richard Gasquet of France after their fourth round match at the Sony Open in Key Biscayne on March 25, 2014. Pedro Portal / Staff Photo

  • Roger Federer of Switzerland returns against Richard Gasquet of France during their fourth round match at the Sony Open in Key Biscayne on March 25, 2014. Pedro Portal / Staff Photo

  • Defending Champion Serena Williams returns against Angelique Kerber of France during their women's single quarterfinals match at the Sony Open in Key Biscayne on March 25, 2014. Pedro Portal / Staff Photo

  • Rafael Nadal of Spain returns against Fabio Fognini of Italy during the first set of their fourth-round match at the Sony Open in Key Biscayne on March 25, 2014. Pedro Portal / Staff Photo

  • Maria Sharapova of Russia returns a ball hit by Petra Kvitova of Czech Republic at the Sony Open in Key Biscayne on March 25, 2014. Sharapova defeated Kvitova in straight sets. Charles Trainor Jr / Staff Photo