The former Arsenal and Everton striker has come off the bench 10 times this season but usually for a few minutes at a time.
Now he's set for a starting role in the absense of Steve Thompson.
That looks to be the only change for City who are still without Kerrea Gilbert. He sits out the third game of his three match ban for being sent off at Norwich.
Top scorer Michael Chopra haeds the Championship goal race with 10 goals from 14 starts.
The game against Colchester is City's 16th of the season, that's over a third of the season played and City have led the table for most of that time.
For Colchester Chris Barker will be missing. His loan agreement from CCFC does not allow him to face his parent club.