Nadel, Wawrinka, Federer Post Wins at Wimbledon

Two-time champion Rafael Nadal, Australian Open  winner Stan Wawrinka  and seven-time titlist Roger Federer posted second-round victories at Wimbledon on Thursday. The second-seeded world No. 1 superstar Nadal came back to beat Czech Lukas Rosol 4-6, 7-6 (8-6), 6-4, 6-4 on the famed Centre Court. Rosol shocked Nadal in the second round  here two years ago, and Nadal was a first-round loser against Belgian Steve Darcis in the opening round last year. The 14-time Grand Slam champion  Nadal, who is the reigning French and U.S. Open titlist, is now 38-7 lifetime at Wimbledon, where  he's a two-time winner and three-time runner-up. Up next for the 28-year-old great will be Kazakhstan's Mikhail Kukushkin.

The fifth-seeded Swiss star Wawrinka moved on by holding off Taiwan's Yen-Hsun Lu, 7-6 (8-6), 6-3, 3-6, 7-5. Wawrinka will meet Uzbekistan's Denis Istomin on Saturday. The fourth-seeded former world No. 1 great Federer eased past Luxembourg's Gilles Muller 6-3, 7-5, 6-3 under the roof on Centre Court. Rain forced the closure of the roof during the second set. Federer improved to 69-8 lifetime at The Championships, where he also finished as a runner-up in 2008 in addition to those seven titles.

In other action involving top-10 seeds, No. 8 Milos Raonic, of Canada, humbled American Jack Sock  6-3, 6-4, 6-4, No. 9 American John Isner erased veteran Finnish left-hander Jarkko Nieminen 7-6 (19-17), 7-6 (7-3), 7-5, and No. 10 Kei  Nishikori, of Japan, erased American Denis Kudla 6-3, 6-2, 6-1.