Jack Wilshere is a doubt for West Ham ahead of their Premier League clash against Crystal Palace on Saturday, Football Insider understands.

The midfielder, 27, has sustained an ankle knock and will be assessed by the club’s medics ahead of this weekend’s London Stadium fixture.

A West Ham source has told Football Insider that the club are hopeful Wilshere will win his race against time battle to be available for selection.

Manuel Pellegrini has already been deprived of first-choice goalkeeper Lukasz Fabianski, who will not only miss the London derby but the next two to three months with a torn thigh muscle.

Wilshere has made six appearances for the Hammers this season, two of which came in the League.

He has made two starts among his four Premier League matches but did not last more than 56 minutes, and he has been a second-half substitute in the last two games.

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This came after the £100,000-a-week England international, who joined on a free transfer in the summer of 2018, was sidelined with his latest in a lengthy series of ankle problems.

It did not prove to be a lengthy spell out, but the former Arsenal man has had an injury-ravaged career which has seen him struggle to realise his immense potential.

Wilshere was among the nine changes for last week’s League Cup mauling at the hands of third-tier Oxford United but lasted just 66 minutes in that game.

He was the subject of strong criticism from supporters who felt he should have been a dominant force against a League One side.

In other West Ham news, it can be REVEALED that the club have tabled a Collins offer.