World number 10 John Isner beat defending champion Ryan Sweeting 7-6 (7/1), 7-6 (7/4) on Friday to reach the semi-finals of the $442,500 ATP US Men's Clay Court Championship.

Feliciano Lopez, ranked 15th in the world, won his Houston debut on Wednesday, beating Paolo Lorenzi 6-4, 7-6 (7/4) to reach the quarter-finals of the ATP Tour US Men's Clay Court Championship.

American Ryan Sweeting launched his title defence at the US Men's Clay Court Championship on Tuesday with a 6-3, 7-6 (8/6) victory over Brazilian qualifier Ricardo Mello.

Having acclimated to the Florida humidity, top seed John Isner captured a 6-3, 6-4 win over fellow American Ryan Sweeting on Wednesday to move into the quarterfinals of the Delray Beach International Tennis Championships.

Sam Querrey beat seventh-seeded Kevin Anderson 7-6 (4), 6-4 on Thursday to move into the quarterfinals at the Regions Morgan Keegan Championships.

Eighth-seeded Marcos Baghdatis defeated American Ryan Sweeting 7-5, 6-1 on Monday in the second round at the Winston-Salem Open.

Some of Robert Kendrick's fellow ATP players are rallying behind the 31-year-old American in the wake of a one-year doping ban handed down last week by the International Tennis Federation.

Somdev Devvarman bowed out of the ATP Farmer's Classic after suffering a straight set defeat against Ryan Sweeting of the United States here.

Defending champion Rafael Nadal eased past Wimbledon debutant Ryan Sweeting of the United States 6-3, 6-2, 6-4 under the Centre Court roof on Wednesday to reach the last 32.

After exiting from singles event, Indian ace Somdev Devvarman bowed out of the doubles competition of the ATP 250 tournament in Nice, France after suffering a straight sets defeat along with partner Ryan Sweeting.