India's numero uno tennis player Somdev Devvarman and US-based Prakash Amritraj crashed out out in the opening round of the $ 50,000 ATP Challenger, while compatriot Rohan Bopanna entered the second round of the hard court event in Bangkok on Tuesday.
The US-based Indian player lost 4-6, 4-6 to China's Zi Yan in the final qualifying round of the US Open.