Justin debuted at the U.S. Open as a wild card in 1995 winning his first round match. Justin attended UCLA at the time and was part of the 1995-96 NCAA finals against Stanford University. He was in the top 100 on the ATP Tour, but specialized in doubles where he won titles in Newport, RI and has a total of 13 ATP doubles titles to his name.
In 1998, Justin won the Australian and French Open mixed doubles titles with Venus Williams. Unfortunately, due to several injuries his professional tennis career came to an end shortly after having major back surgery in 2006. He has played host to Tennis Channel’s “Open Access” and is one of the premier color commentators for all the Grand Slams.