Juan Martin del Potro has won Clarin’s Sportsman of the Year award in Argentina. It's the second time the 2009 U.S. Open champion has won the honor.

Del Potro won four titles last season—Rotterdam, Washington, Tokyo, and Basel—and reached the world No. 5 ranking. He also scored wins over Novak Djokovic, Rafael Nadal, Roger Federer, and Andy Murray.

"It was a great year. I finished a lot better than I expected," Del Potro was quoted as saying at the awards ceremony.