Argentine Juan Del Potro will face Italian Andrea Seppi in the first round of Wimbledon, while Juan Mónaco will face a tough draw against Spaniard Nicolás Almagro.

Defending champion Rafael Nadal confirmed he will be spared from the competition due to a knee injury. Five-time champion Roger Federer was placed in the same half of the draw as Novak Djokovic on Friday, and could face the Serb in the semifinals as he bids for a record 15th career Grand Slam title.

Federer faces a seemingly easy path, but could face Soderling in the fourth round and either seventh-seeded Fernando Verdasco of Spain or No. 9 Jo-Wilfried Tsonga of France in the quarterfinals.

The Williams sisters were placed in opposite sides of the draw, setting up a potential final matchup. Defending champion Venus Williams is aiming for her sixth singles title on Centre Court, but may first have to overcome top-ranked Dinara Safina in the semifinals. Serena could play fourth-ranked Elena Dementieva for a spot in the final.

Former women's champion Maria Sharapova, who is still trying to return to form after a lengthy injury layoff, starts against Viktoriya Kutuzova of Ukraine and could face Serena Williams if she makes it to the quarterfinals.

Safina was drawn against Lourdes Dominguez Lino of Spain in the first round. Venus Williams will take on Stefanie Voegele of Switzerland and Serena plays Neuza Silva of Portugal.

Safina, who is still looking for her first Grand Slam title, may face Svetlana Kuznetsova in the quarterfinals after losing to her fellow Russian in the French Open final.