Another tennis milestone looms for Roger Federer at the U.S. Open tomorrow when, if he beats Israel's Dudi Sela, he will chalk up his 225th grand slam win.
That will move him into outright second place among men, one clear of Andre Agassi, and closer to Jimmy Connors's record of 233, which Federer should surpass next year.
The world number one Novak Djokovic can also edge closer to one of the sport's great records if he wins his clash with Carlos Berlocq of Argentina.
The Serbian has a 58-2 record this season. The record for the most wins in a single season is 82, held by John McEnroe.
Serena Williams will play her second round match against Michaella Krajicek of the Netherlands, flying the family flag alone after the surprise withdrawal of her sister Venus who has an autoimmune illness.