Chennai lad, Prajnesh Gunneswaran who broke into the top-100 of the ATP rankings on Monday, unfortunately couldn’t stamp his authority in the ongoing ATP Challengers in Bangkok. The top seed crashed out in the opening round itself. Prajnesh is only the third Indian after Somdev Devvarman and Yuki Bhambri to break into the top-100 of men's singles ranking on the ATP tour.