Dubai: Wildcard Somdev Devvarman entered the second round of the Dubai Duty Free Tennis Championships here Tuesday after second seed Juan Martin del Potro was forced to retire mid-way with an injury. Devvarman had won the first set 7-6 (3) when the Argentine decided to walk off the court.

Del Potro had gained a 2-0 lead in the first set before the Indian fought back. Somdev, ranked 78, had won the first set 7-6 (3) in an hour and seven minutes. The Indian traded a break with Del Potro before pushing the match into tie-breaker. He kept hitting it on the backhand of the Argentine, inducing unforced errors from his big-bodied rival. Immediately after this, Del Potro took a medical timeout due to pain in his left wrist.