Venus Williams acknowledges that a sprained left kneecap that's sidelined her during the summer hard-court circuit means her U.S. Open preparation "wasn't ideal." Williams also declares herself "ready for the Open," which she won in 2000 and 2001. During a conference call Tuesday to promote an interactive tennis clinic sponsored by Polo Ralph Lauren that she's hosting Thursday, Williams says she's "had a tough summer, with some bad luck with my leg." http://sports.espn.go.com/sports/tennis/usopen10/news/story?id=5493738
