On Murray's serve at 4-4, first set, he was down 0-30, and hit a cross-court shot which landed to the outside of the sideline. Del Potro immediately raised his hand to challenge, and may have verbalised it too, although the noise level may have blotted that out. Pascal Maria somehow didn't...
Juan Martin Del Potro of Argentina celebrates his 3-6, 7-6, 4-6, 7-6, 6-2 win over Roger Federer of Switzerland in the Men's Final match during the 2009 US Open at the USTA Billie Jean King National Tennis Center, in New York, September 14, 2009. AFP PHOTO/Stan HONDA (Photo credit should read STAN H
Juan Martin Del Potro of Argentina celebrates his 3-6, 7-6, 4-6, 7-6, 6-2 win over Roger Federer of Switzerland in the Men's Final match during the 2009 US Open at the USTA Billie Jean King National Tennis Center, in New York, September 14, 2009. AFP PHOTO/Stan HONDA (Photo credit should read STAN H