West Ham United midfielder Jack Wilshere has suffered a setback in his latest injury recovery.

Wilshere's stop-start West Ham career has stalled yet again due to a mystery groin injury.

The former England midfielder has started just six Premier League matches since joining on a free transfer from Arsenal in the summer of 2018.

"Jack continues every week trying to work, but when he works harder he starts to feel pain in his groin," said Pellegrini.

"He is seeing different doctors to see what has happened. He's a player we need a lot, a different player, but if he's not 100 per cent recovered it's difficult for him to work."

Wilshere is set to miss the entire Christmas period as West Ham attempt to build on their 1-0 win at Southampton last time out.