West Ham winger Michail Antonio will miss the rest of the season after suffering a serious hamstring injury.
Antonio was forced off during the first half of West Ham`s 1-0 win over fellow strugglers Swansea last weekend.
Hammers boss Slaven Bilic confirmed on Friday that the 26-year-old`s injury is significant enough to rule him out for the remainder of the campaign.
Antonio, who had just returned to the side following a similar injury, pulled up moments before half-time and was unable to continue.
He is also a doubt for England`s World Cup qualifier against Scotland on June 10 after pulling out of Gareth Southgate`s previous squad, for matches against Germany and Lithuania, due to injury.
Antonio, who is yet to make his England debut, will miss West Ham`s final six Premier League games as they fight to avoid relegation.
The east Londoners are currently eight points clear of the bottom three.
"It is a significant injury, he is out for the season," Bilic said. "It`s a big blow, he is one of our best players.