Indian Davis Cupper Somdev Devvarman defeated American qualifier Travis Rettenmaier 6-3, 6-2 to advance to the second round of the US $75,000 ATP Challenger in Nashville, US.

He next plays American Sam Warburg, who ousted eighth seed Amer Delic 6-3, 7-6(8).

Meanwhile, National champion Ashutosh Singh and Harsh Mankad qualified for the doubles after prevailing over Somdev and his Russian partner, Izak Van Der Merwe 7-6(3), 4-6, 10-2 in the final round of the qualifying competition.

They open their campaign against the local wild card pair of Scoville Jenkins and Colt Gaston in the main draw.