American tennis player Querrey beats del Potro

American tennis player Sam Querrey beat Argentina's Juan Martin del Potro 7-5, 7-5 in the men's singles semi-finals of the Delray Beach Open, ending the former US Open champ's run at his first event of his comeback trail.

Del Potro, who has undergone three surgeries on his left wrist and one on his right wrist, had been out of action since the Miami Masters in March 2015, reports Efe.

Querrey dictated the pace on Sunday and was able to pull off the win in a close match, breaking del Potro on two of his three break opportunities. The Argentine never had a chance to break Querrey, who will play countryman Rajeev Ram in the final.

Ram, the World No.89, beat Bulgaria's Grigor Dimitrov, the No.4 seed, 6-4, 6-3 in the semis.

The 27-year-old del Potro, a former World No.4 whose ranking has tumbled to No.1,042 because of the injury hiatus, entered the event as a wild card. He became the first and only Latin American to win a hard court Grand Slam singles title when he upset Swiss great Roger Federer in the 2009 US Open final.