Novak Djokovic and Serena Williams stormed into quarterfinals of the US Open Tennis Tournament.
Novak Djokovic opened his fourth-round match with a thrilling 16-14 first-set tiebreaker over No. 22 Alexandr Dolgopolov and things got easier from there in a 7-6 (14), 6-4, 6-2 victory at the US Open on Monday.In the womens tournament, Serena Williams fought off the wind, along with brief flurries of effectiveness from her opponent, to advance to the quarterfinals with a 6-3, 6-4 victory over Ana Ivanovic.Next up for Williams is No. 17 Anastasia Pavlyuchenkova, who made it to her second Grand Slam quarterfinal with a 5-7, 6-3, 6-4 win over former French Open champion Francesca Schiavone.In other early play, 20th-seeded Tipsarevic outlasted 2003 French champion Juan Carlos Ferrero 7-5, 5-7, 7-5, 6-2 in a match that took 3 hours, 43 minutes. Tipsarevic will play Djokovic in an all-Serb quarterfinal.Others playing later Monday were No. 8 Mardy Fish, No. 3 Roger Federer and top-seeded Caroline Wozniacki.