Topic: American Michael Russell

Top seeds Tommy Haas and John Isner were both winners in first-round play at the Delray Beach Open in Florida Tuesday.

Defending champ Kei Nishikori will meet Ivo Karlovic for the title of the U.S. National Indoor Championships after each logged a semifinal win Saturday.

Seeded players Marinko Matosevic and Michal Przysiezny each fell in opening-day upsets Monday at the U.S. National Indoor Championships.

Second-seeded Rafael Nadal stayed on a roll with a first-round win but 11th-seeded Kei Nishikori fell in an upset Monday on the opening day of the U.S. Open.

Fifth-seeded Yen-Hsun Lu of Taiwan moved on to the second round of the Atlanta Open Tuesday with a 6-3, 7-5 victory over American qualifier Kevin King.

Ninth-seeded Benoit Paire of France and No. 10 Grigor Dimitrov of Bulgaria were among the first-round victors Monday at the Aegon Championships.

Fifth-seeded John Isner needed a first-set tiebreaker but advanced with a victory Tuesday in first-round play at the U.S. Men's Clay Court Championship.

Third-seeded Sam Querrey advanced but No. 5 Alexandr Dolgopolov fell Monday in first-round action at the Delray Beach tennis event.

John Isner, who played an 11-hour match against Nicolas Mahut two years ago, beat him in 78 minutes Wednesday at the Hall of Fame Tennis Championships.

Rafael Nadal will open defense of his Wimbledon title against American Michael Russell, tournament officials said Friday in releasing the men's singles draw.