With hindsight, the medical team and Bilic should have been much more cautious with him. He played against Chelsea on Monday and then came on as a sub at FC Astra on Thursday, which appears to be more than his body can cope with. I'd always opt for a seven-day gap between his games in the manner of managers who nurse older players through the season. We have the squad to rotate now. It's also possible Carroll has a high pain threshold and because he's brave plays on through injury when he should go off.
Let's hope he's only out for four weeks. Andy looked in great form against Juventus, and I really hope he can make a success of his time at West Ham. But after this latest blow, he really does have to prove he can stay fit for the rest of the season.