Collison close to return
Collison has not played for the Hammers this season after he suffered a recurrence of the knee injury that has troubled him over the past two-and-a-half years.
The Wales international moved closer to a recall, however, stepping out in a Hammers shirt for the first time this season during a 3-1 defeat at Norwich.
Collins, 24, set up a chance for Sebastian Lletget before heading Nathan Mavila's cross narrowly wide.
He was then replaced at half-time in a pre-planned substitution.
Norwich striker Harry Kane, who has not played a first-team match since September due to a foot injury, pressed his claim for a recall to the Canaries' starting XI by scoring twice in the match.