Serena reaches 4th round of US Open

NEW YORK – Serena Williams is taking no prisoners at this year’s U.S. Open.
Williams didn’t lose a single game in her round-of-16 match, blasting 82nd-ranked Andrea Hlavackova 6-0, 6-0 on Monday to reach the quarterfinals.
Williams will next face Ana Ivanovic, who beat Tsvetana Pironkova 6-0, 6-4 Monday in the fourth round of the U.S. Open.
Ranked No. 1 in the world in 2008, Ivanovic has struggled with injuries and her confidence since.
After failing to serve out the match at 5-3 in the second set, the 12th-seeded Serb broke the 55th-ranked Bulgarian at love in the next game to clinch the victory.
Pironkova, a 2010 Wimbledon semifinalist, went up a break twice in the second set only for Ivanovic to immediately break back. There were seven service breaks in 10 games in the set