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Early in the second half during Arsenal's match against Chelsea today, Theo Walcott pulled up holding his hamstring. It looked like he would come off, but he didn't, and a couple of minutes later, he appeared to have made it much worse, and Gervinho replaced him.
Well, Arsene Wenger has confirmed that the injury is a pretty bad one:
It looks like a serious hamstring. First we assessed the hamstring, he wanted to go on and stay on the pitch, and I think he should have gone off straight away because the second time it was a real hamstring [injury]. I think now for him it will be tough to come back before the end of the season. It is usually 21 days [minimum]. He should be OK to play for England - he just will have a good rest. You suddenly become favourite to win the European Championship! But I don't think he will be ready to play for us.
If that's the case, Alex Oxlade-Chamberlain and Yossi Benayoun and Gervinho have their work cut out for them. Andre Santos is also an option on the left wing, as we saw today. Hopefully Walcott will have a speedy recovery.