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Defending champion Roger Federer stormed back from 4-1 down in the first set to beat Fernando Verdasco 6-4, 6-3 on Wednesday and claim a spot in the quarterfinals of the Dubai Tennis Championships.
Sixth-seeded Jiri Vesely of the Czech Republic was knocked out in the first round of the Argentina Open on Tuesday, beaten by Blaz Rola of Slovenia 6-4, 6-3.
Donald Young's travails are well-known at this point, but after two weeks of inspired play, including a run to the final of Delray Beach, things are changing.
Donald Young moved a step closer to his first ATP Tour title, beating Australia's Bernard Tomic 4-6, 6-4, 6-2 on Saturday in the Delray Beach Open semifinals.
Rafael Nadal was beaten in the semifinals of the Rio Open on Saturday, losing 1-6, 6-2, 7-5 to Italian Fabio Fognini, who will meet David Ferrer in the final.
Donald Young upset third-seeded Alexandr Dolgopolov of the Ukraine 2-6, 6-3, 6-4 in the Delray Beach Open on Friday to reach back-to-back ATP Tour semifinals for the first time in his career.
Rafael Nadal kept rolling in his first clay-court of the season with a 7-5, 6-3 victory on Thursday over fellow Spaniard and friend Pablo Carreno Busta to reach the quarterfinals of the Rio Open.
Third-seeded Alexandr Dolgopolov of the Ukraine won just his second match of the ATP season with a 7-6 (7-4), 6-3 victory over Russian Teymuraz Gabashvili in the first round of the Delray Beach Open on Monday.
Kei Nishikori of Japan beat American qualifier Austin Krajicek 4-6, 6-3, 6-4 on Friday night in the quarterfinals of the Memphis Open.
Top-seeded Kei Nishikori was pushed to three sets in his opening match of the Memphis Open on Wednesday, beating American qualifier Ryan Harrison 3-6, 6-3, 6-4 to advance to the quarterfinals.
Ivo Karlovic moved into the second round of the Memphis Open with a 7-6 (7), 6-3 victory over Lukas Lacko on Tuesday.
American Donald Young defeated eighth-seeded Adrian Mannarino of France in straight sets 6-3, 7-6 (9) Monday afternoon in the opening round of the Memphis Open.
Marcos Baghdatis survived 26 aces and saved a match point to upset top-seeded Ivo Karlovic in the second round of the Zagreb Indoors on Wednesday.
Former champion Mikhail Youzhny of Russia came back from a break down in the deciding set to defeat Blaz Kavcic of Slovenia in the first round of the Zagreb Indoors on Tuesday.
Meet your eight under-27 players who could challenge the game's elite players.
Australian Open champion Stan Wawrinka advanced to the quarterfinals of the Chennai Open by beating Croatian teenager Borna Coric 6-1, 6-4.