West Ham United striker
Carroll, 23, was forced to withdraw from England's 2014 FIFA World Cup qualifiers against
The Premier League club is yet to confirm reports scans have shown the problem to be more severe than first suspected.
Carroll is now certainly expected to miss the resumption of the domestic season at Norwich City next weekend, as well as the Capital One Cup tie against Wigan Athletic.
The Irons host Arsenal on 6
He said: "If Andy scores between 10 and 15 goals, it is going to give us a great chance to be out of the relegation zone.
"If Andy gets 15 to 20 goals, we can get in the top 10 because all we have to do there is to produce enough clean sheets to make sure we get points on the board with the goals that he scores."
English Premier League