New York Knicks’ Amar’e Stoudemire is expected to miss up to six weeks of action with ongoing knee troubles.

The forward felt soreness in both his knees during morning practice on Saturday and following an MRI, it revealed that he needed surgery which would keep him out of action for six weeks, meaning he could miss the rest of the season.

It’s a huge blow for Stoudemire, who missed the first two months of the season while recovering from arthroscopic surgery on his left knee. He returned to the Knicks squad in their win over the Detroit Pistons in London in January and had looked to be back in his normal rhythm.

“He’s a big piece to the puzzle,” Knicks’ coach Mike Woodson told ESPN. “It’s a major loss to what we’re trying to do but we’re going to have to wait on him and continue our climb.”

The upcoming surgery is a red flag; Stoudemire’s contract with the Knicks is a five-year, $100million [€769,200] contract which is uninsured because of his history of knee issues. Stoudemire is under contract through to the 2014-15 season.

To add to Woodson’s troubles, Carmelo Anthony has missed the last three games, also with a knee injury.