Serena Williams moves into U.S. Open quarterfinal

Serena Williams, a three-time champion, won her first three games in eight minutes and beat 16th-seeded Ivanovic, 6-3, 6-4, to advance to her ninth U.S open quarterfinal.
Federer, a five-time champion who didn't even take the court on Arthur Ashe Stadium until about 11:50 p.m. EDT on Monday, won the first set in 18 minutes and destroyed Argentina's Juan Monaco , 6-1, 6-2, 6-0, in 1 hour 22 minutes to walk away a winner at 1:13 a.m. Tuesday morning