The 25-year-old was carrying the problem before the international break and Hammers boss Gianfranco Zola, who refused to push for his withdrawal, then saw him aggravate the complaint during England's friendly win over Slovakia last weekend.

The schedule for Cole's return would see him play in the final three matches of the Barclays Premier League season, with the club in the hunt for a place in the Europa League, but the former Chelsea forward would be well short of match fitness.

"Fortunately he won't need an operation, it is a problem between the muscle and tendon in the groin," Zola said. "He should be available in six weeks."

Adding to Zola's problems ahead of this weekend's clash against Sunderland is Radoslav Kovac picking up a knock and Scott Parker playing recently despite a groin problem.

"It's frustrating because they are important players for us and it is a crucial point of the season for us. But these situation make me think more and other players get more responsibility," Zola said.

"It is a problem that will make everyone better if we treat it in the right way."

Zola has welcomed Alan Shearer to top-flight management following his appointment as caretaker boss at Newcastle - and his only advice is that the former England striker should keep faith in his football principles.

"It is very positive when you have players that have given so much to the game and are still involved," Zola said.

"I'm sure he will do a good job. I'm a bit young to give advice but the only thing is to keep his philosophy even if the results are not coming.

"If you manage to keep your idea of football throughout everything you will be a winner."

Zola feels it is still possible for Newcastle to beat the drop, adding: "Look at us, we were two points from the bottom before playing Sunderland and Liverpool - nobody would have put a penny on us. The same can happen for Newcastle, as long as you have faith nothing is impossible."