Manuel Pellegrini has been dealt a blow with the news that Andy Carroll and Winston Reid have both been ruled out for three months through injury.

Carroll has picked up an ankle problem which requires minor surgery while influential centre half Reid will also go under the knife having suffered a knee injury.

For Carroll, it is the latest in a series of setbacks for the powerful striker during his time at the London Stadium, with the former Newcastle man making just 90 league appearances since making his loan move permanent in June 2013.

The former England international has made over thirty appearances in just one of his five seasons with the Hammers, and picked up his latest injury during Sunday’s friendly with Winterthur, in which he scored the Irons’ opening goal in a 3-2 defeat.

Meanwhile, New Zealand international Reid hasn’t featured for the Hammers since being stretchered off with a knee injury during the 4-1 defeat to Swansea in March.

But the Hammers defender is set for another extended spell on the side-lines, after the club deemed that he required exploratory surgery after suffering swelling on his knee.

Head of Medical Richard Collinge told the club’s website: “Andy played and scored in Sunday’s match but is still reporting some discomfort in his ankle and further scans have revealed that he requires some minor surgery to provide more strength and stability to the area.

“Winston has been suffering some swelling around the knee, following the injury that he sustained at Swansea last season, and he too is in need of explorative surgery to clean up the area. We have decided that this is the best course of action to ensure that both players have a chance of returning to full fitness as soon as possible.”

The news will be a blow to boss Pellegrini, who has already started to revamp the club’s squad this summer, and he added that the Hammers may now look to bring in some new additions after the duo’s setbacks.

“We are obviously very sad to hear that Andy and Winston have suffered setbacks. This is a big blow for them and us, but we hope to see them back in action as soon as possible,” the Chilean told West Ham’s website.

“It does mean that we have lost two players in key areas, though, and we’ll continue to work hard with the owners to make further additions to strengthen the playing squad, beyond the five new signings already confirmed.”