Competing with the physique of his opponent was a particular issue for Roddick whose Grand Slam season that reached its peak at Wimbledon ended when he was beaten in a fifth set tiebreak Giant killing Towering American John Isner is congratulated by Andy Roddick after his defeat The Texan was to perish 7 6 6 3 3 6 5 7 7 6 against the 6ft 9in Isner whose serve was