Barring an unforeseen loss, the third-seeded Federer and the fifth-seeded Nadal could meet in the quarterfinals at the All England Club -- the earliest meeting ever in a Grand Slam for the two superstars.
The tournament is set to begin Monday.
Federer, who is the defending champion, has won a record-tying seven Wimbledon titles; Nadal has won just twice. Last year, Nadal bowed out in the second round.
Whoever survives the quarterfinal match -- assuming it happens -- will likely have to get past No. 2 seed and hometown favorite Andy Murray in the semifinals.
Novak Djokovic , the top seed, is on the other side of the bracket and ostensibly has a much easier road to the finals.