[Rusty Backhand]

Serena Williams withdrew from the Rogers Cup on Wednesday with an injured left knee. Williams, the No. 5 seed, defeated Stephanie Cohen-Aloro of France 3-6, 6-4, 6-2 in the second round of the WTA tournament on Tuesday. But Williams struggled with her mobility on the court, often failing to get to balls well within her reach.

http://us.rd.yahoo.com/sports/rss/ten/SIG=12p4qm8ul/*http%3A//sports.yahoo.com/ten/news?slug=ap-torontomasters-williamsout&prov=ap&type=lgns