West Ham United left-back Aaron Cresswell is in doubt for Wednesday's clash with Brighton.
Left-back Cresswell has proved a threatening force under Moyes, notching up four assists this season.
But the Englishman might not be able to face Brighton after picking up a knock against Manchester City last weekend.
Moyes said: "We've got a doubt about Aaron Cresswell, but he's been out today, so we're hopeful that he's not too bad.
"We'll see how he is."
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