Roger Federer of Switzerland is seen past the legs of an umpire as he serves to Steve Darcis of Belgium during their second round match at the U.S. Open Championships tennis tournament in New York, September 3, 2015. REUTERS/Carlo Allegri
NEW YORK (Reuters) - The Roger Federer express will look to gather further pace in the third round of the U.S. Open on Saturday as the world number two continues his bid for a sixth U.S. Open title and an 18th grand slam crown.
Federer, who has been in sizzling form since reaching the Wimbledon finals, will face Germany's Philipp Kohlschreiber at Arthur Ashe Stadium, having steamrolled through his first two matches.
