India’s Somdev Devvarman caused a major upset against 2 former champion and world number 42 Carlos Moya of Spain to storm into quarter-finals of Chennai Open ATP tournament on Thursday. The Chennai open started fews days back and they is a fray and tussle for the winning shot. Well known heros are here to prove their power to gain the Trophy. Some because of injuries were out of the game merely played 1 or 2 matches. Somdev, who is ranked 202 on ATP charts, rallied to defeat sixth seeded Moya 4-6, 7-5, 6-4 in a gruelling 131 minute second round encounter of the $4,50,000 event. Next match for somedev is against one of the top 10 players named Ivo Karovic of Croatia.Moya was making his seventh appearance in the tournament which was started eight years ago with title wins in 2004 and 2005.Somdev, who is unseeded here, next plays fourth seeded Ivo Karlovic of Croatia, who beat Tvo Minar of Czech Republic 6-1 6-4 in another second round match.