Somdev Devvarman cruised past higher-ranked Czech opponent Jan Hajek in straight sets 6-3, 6-3 in only 69 minutes and advanced to the second round of Men's Singles in the Chennai Open Tennis tournament.Former India Davis Cupper Prakash Amritraj also won his match 6-7 (4), 6-2, 6-2 against Rufin Guillaume of France.In Men's doubles, Thai brothers Sanchai Ratiwana and Sonchat Ratiwana dashed the hopes of defending champion Leander Paes and Edouard Roger Vasselin of France 7-6 (7) 6-1 and breezed into the quarterfinal.