Champion of men singles 2009 US Open Tennis tournament?

Question

The US Open is an annual tennis tournament and played on outdoor hard courts at the USTA Billie Jean King National Tennis Center in Flushing Meadows Corona Park, New York City, United States. Does anyone know about the champion of men singles 2009 US Ope

Answer 1

Juan Martín del Potro played well throughout the tournament and Juan Martín del Potro was the winner of 2009 US Open Tennis tournament final.