The Daily Mail says it can be revealed Downing required twelve stitches to an Achilles heel wound he sustained during the 4-1 defeat the Hammers suffered at Anfield on Saturday.
Downing was the victim of a fierce challenge by Liverpool full back Jon Flanagan early on in the game which West Ham boss Sam Allardyce believed was a red card offence.
The amount of stitches emphasised the extent of the wound and a West Ham source said: "Ideally we would like to think Stewart will be back in action in a couple of weeks.
"But it’s a part of the body where it is difficult to train with the ball until it has fully healed. We will just have to wait and see."
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