Tsvetana Pironkova Venus Williams has won Wimbledon five times in her career – making her one of the greatest grass court players of all-time. But there’s something about the Bulgarian Pironokova’s game that gives Venus problems on grass. In 2010, the 25 year old Bulgarian upset Marion Bartoli and Venus to reach the semi-finals of Wimbledon and then went 5-8 for the rest of the season. In 2011, Pironkova was only 6-14 before making another run at SW19, reaching the quarter-finals with wins over Vera Zvonareva and Venus once again. And then went 5-7 for rest of the season. Pironkova did not have the same success on grass in 2012, making the quarters in Eastbourne (losing to Paszek) and bowing out in the second round at Wimbledon, but not before taking Maria Sharapova to three sets. Her best results came at the US Open where she reached the fourth round. This year, the Bulgarian has struggled once again, winning only 4 matches in 14 events, which must only mean that she is setting herself up for another deep run at Wimbledon.