Michael Carrick was pictured in a cast and on crutches following England's 2-0 defeat against Spain on Friday evening.
The Manchester United midfielder appeared in agony when he twisted his ankle in stoppage time. He was stretchered off and replaced by Jonjo Shelvey.
Manager Roy Hodgson suggested that the injury could be as serious as it looked. The 34-year-old will definitely miss England's game against France – if it goes ahead – and is set to undergo scans today to determine the full extent of the damage.
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Speaking to reporters after the game, Hodgson suggested Carrick may have suffered ligament damage; an injury that could rule him out for several months.
Hodgson said: "Michael has got a severely twisted ankle which normally means ligament damage.
We won't know that of course until he's had an X-ray or a scan, but it doesn't look good."
Here he was after the game:
Carrick has struggled with fitness issues in the last few seasons but had been working his way back into first-team contention in the current campaign. He has started seven of Manchester United's 12 Premier League games but now looks set for another frustrating spell on the sidelines.
The midfielder suffered ligament damage in his right foot last year, which required surgery. Another serious ankle injury would also surely see him miss Euro 2016 and, with it, his last chance to play for England at a major tournament.