West Ham have been dealt a blow in their bid for European football with goalkeeper Adrian set to be sidelined for their three remaining Barclays Premier League matches.
The 29-year-old stopper has missed only three games for the Hammers in the league this season, but has been ruled out of Swansea's visit to Upton Park on Saturday with a calf injury.
Manager Slaven Bilic revealed Adrian sustained the issue following West Ham's 3-0 win at West Brom, and does not expect him to feature again this season.
Darren Randolph, the Ireland international who impressed in West Ham's run to the last eight of the FA Cup this term, will deputise for the stricken Adrian.
"Adrian is injured," Bilic said. "He felt his calf after the West Brom game and reported it to me.
"It's minor but unfortunately because it's his calf. He is out against Swansea and probably for the rest of the season.
"We have a great deputy in Randolph when we've needed him. Whenever he has stepped in he's been brilliant.
"He's one of the reasons we went far in the FA Cup. He was great against Manchester United, home and away, and Liverpool. We're happy to have him."