Roddick withdraws from world finals
LONDON -- Andy Roddick is withdrawing from the season-ending ATP World Tour Finals because of a left knee injury.
The No. 6-ranked Roddick hurt his knee at last month's Shanghai Masters.
The ATP said Tuesday that French Open runner-up Robin Soderling, No. 9 in the rankings, will take Roddick's spot in the eight-man field.
The draw for the tournament is Wednesday, and play starts Sunday. The other participants: Roger Federer, Rafael Nadal, Novak Djokovic, Andy Murray, Juan Martin ...
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