SportsDash: Can anyone beat Serena at U.S. Open

Matt Grassie

Wimbledon champion Marion Bartoli retired, and Maria Sharapova is out with bursitis in her shoulder. So who is going to challenge defending U.S. Open champion Serena Williams in Flushing?

Rennae Stubbs joins the SportsDash team to discuss the favorites for the upcoming Grand Slam, tabbing Victoria Azarenka as the most likely to give Serena a run for her money.