West Ham United winger Maxwel Cornet could be at risk of not making a return to action before the upcoming World Cup according to medical expert and Sky Sports contributor Ben Dinnery. 

The Lowdown: Cornet's injury

The winger has been out of action for over a month after picking up a calf issue during the Hammers' 2-0 win over Wolves in the Premier League.

Prior to the upcoming World Cup, David Moyes' side take on Crystal Palace this afternoon, which is then followed by a midweek clash against Blackburn Rovers in the Carabao Cup, before next weekend's league match against Leicester City.

In regards to Cornet and the possibility of seeing him back on the pitch in either of those games before the break, it appears that Dinnery has shed some light on the situation.

The Latest: A worry for West Ham

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Speaking to GIVEMESPORT, Dinnery had this to say on the matter.

He said: "Ideally, he won’t be too far away, but decisions will come on a daily basis in terms of that recovery. It’s one you’d be hopeful of saying, ‘He’ll play before that break.’ But there are no guarantees with this one."

The Verdict: Concern for Cornet

Despite only starting one of the five Premier League games he's appeared in for West Ham this season, the 26-year-old currently has the highest rate of shots at goal per 90 minutes (3.96) at the east London club.

In addition to that, across the four games he's played in the Europa Conference League and the two qualifying games, Cornet has delivered five assists, further highlighting how much of a useful attacking figure he can be for Moyes.

Given how he has played in numerous positions when he has been available this season, his versatility and attacking talent will surely have made him a useful option for the Hammers during this period that he's been out of action.

Now that Dinnery has thrown some doubt over when or if the Ivorian will be able to make an appearance for his team over the next week before the World Cup break, this will surely be a concern for Cornet and everyone at West Ham.