Serena Williams in U.S. Open quarterfinals

Serena Williams fought off the wind, along with brief flurries of effectiveness from her opponent, to advance to the quarterfinals of the U.S. Open with a 6-3, 6-4 victory Monday over Ana Ivanovic.
Williams closed the match with four straight serves that Ivanovic couldn’t return – clocked at between 99 and 111 mph in a blustery Arthur Ashe Stadium that had both players fighting with their tosses and topspin.