associated pressRoger Federer, seen here at the French Open earlier this month, will shoot for his fifth straight Wimbledon crown as the No. 1 seed.

WIMBLEDON, England — Roger Federer aims for his fifth straight Wimbledon title, while Justine Henin looks for her first championship at the grass-court Grand Slam. Both were seeded No. 1 on Wednesday.

Rafael Nadal, the Wimbledon runner-up last year, was seeded No. 2 ahead of Andy Roddick.

The draw will be held Friday for the third major of the year, which begins Monday.

Maria Sharapova, who won the 2004 title at 17, is seeded No. 2, followed by Jelena Jankovic. Defending champion Amelie Mauresmo was seeded fourth.

Two-time winner and Australian Open champion Serena Williams is No. 7.

In determining the seedings, Wimbledon took past performances on grass into account. The seedings at other Grand Slams mirror the rankings.

Venus Williams was seeded 24th, seven places above her ranking because of five final appearances in the past seven years. The most recent of her three titles came in 2005, when she became the lowest seeded player to win the women's title at No. 14.

Federer won the first of four straight Wimbledon titles in 2003. Henin, the French Open champion, will attempt to improve upon her losses in the 2001 and 2006 final.

Fifth-ranked Novak Djokovic was moved up to the No. 4 seeding after winning in Estoril, Miami, and Adelaide, Australia, and losing to Nadal in the French Open semifinals.

Eleventh-ranked Tomas Berdych was seeded No. 7, switching places with Tommy Robredo, while Marcos Baghdatis was the biggest beneficiary of the system. The Cypriot player, who lost to Nadal in straight sets in last year's semifinals, was seeded at No. 10, six places above his ATP ranking.

Lleyton Hewitt, the 2002 champion, was No. 16, three spots above his ranking.