The Arsenal left-back was carried off on a stretcher early in the second half of the 3-0 win over Estonia, with victory at Wembley meaning England will qualify for Euro 2008 if they win in Moscow.
"He rocked his ankle blocking a shot," said England boss Steve McClaren. "It doesn´t look good but injuries can settle down in 24 hours and it is a critical period. We´ll know more on Sunday evening when we reassemble. They have X-ray machines here so we´re waiting for the results."
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