West Ham United manager David Moyes has shared some insight regarding the suspected injury blow picked up by Lukasz Fabianski, during yesterday's 1-0 defeat against Manchester United

The Lowdown: Fabianski blow at Old Trafford

The Irons goalkeeper rushed out to make a headed clearance as Christian Eriksen closed in on goal during the first half, with Fabianski winning the ball but landing awkwardly. A few minutes later, Marcus Rashford netted the decisive goal.

After starting the match at Old Trafford, Fabianski didn't come out for the second half and was replaced by Alphonse Areola, having sustained a potential injury blow.

The Latest: What Moyes had to say

Speaking after the match, Moyes shared some insight on the issue that Fabianski had, although the West Ham boss appeared to suggest that the 37-year-old wasn't badly injured.

The Scot said: "I just know that he’s got a sore knee. He’s hurt his knee and we knew we weren’t going to take the chance at half-time.

"I don’t know [the severity], they just told me that his knee sort of went back and I think the footage shows it as far as I know. I think it was just a wee bit of a jar of the knee."

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The Verdict: Worrying for West Ham

Having played in all 13 of West Ham's Premier League games this season, it's clear that the 37-year-old is the Irons' number one goalkeeper.

In that time, Fabianski has faced 46 shots on target and made 36 saves, giving him a save percentage of 78.3%, leaving only four other goalkeepers in the league with a better return.

His overall performances in the current campaign have earned him a solid rating of 6.73/10 from WhoScored, making him the sixth-highest rated player at the London Stadium above the likes of Jarrod Bowen, Pablo Fornals and Michail Antonio.

This highlights how vital a figure the veteran has been for Moyes' side this season and why potentially having him out injured would be a worry for them ahead of the World Cup break.

It seems safe to suggest that everyone at West Ham will have their fingers crossed that the issue incurred by Fabianski against the Red Devils is indeed not a serious one and that he might be fit enough to play in their next league game against Crystal Palace next Sunday.