The influential player was injured in the 23rd minute of the defeat to Sheffield United but last until half-time until he was replaced.
Now, he looks doubtful for the game which kicks off at 12.30pm in front of a sell out 31,200 crowd at the Ricoh Arena and many more watching on ITV1.
"We will have to wait and see but at the minute it doesn't look very good," said Coleman after the Sheffield United game to the media. "I am not saying long-term but, he could struggle for the weekend."