West Ham were in control from the start and took the lead in the 13th minute, as Summerville rounded off a swift counter by racing onto Mateus Fernandes' throughball, and coolly lifting over Martin Dubravka. The Hammers doubled their advantage 13 minutes later. Summerville's neat flick released El Hadji Malick Diouf out on the left, with the full-back's cross brilliantly headed home by Castellanos.
Burnley captain Josh Cullen is set for a "prolonged period on the sidelines" after sustaining an anterior cruciate ligament in his right knee. The Republic of Ireland midfielder suffered the injury early in the second half of Saturday's 0-0 draw with Everton before being replaced by Florentino Luis. Cullen had scans on Monday which confirmed the injury and the 29-year-old is set to undergo surgery. "Everyone at Burnley Football Club wishes Josh all the best for a successful and speedy recovery," the Clarets said in statement.
Substitute Armando Broja headed in a last-minute equaliser as Burnley salvaged a 1-1 draw with Bournemouth, which ended the visitors' seven-game Premier League losing run. Bournemouth had been in charge of the contest and looked on course for victory when Antoine Semenyo picked out the bottom corner with a fine finish, capitalising on an untimely slip from Josh Laurent in the 67th minute, before it was cancelled out.
Armando Broja scored an injury-time equaliser as Burnley ended their seven-match losing run with a 1-1 draw at Bournemouth. Having seen a Jaidon Anthony goal ruled out for offside late in the first half, Burnley looked set to suffer an eighth successive defeat when Antoine Semenyo, heavily linked with a move away from Bournemouth with the likes of Manchester City and Manchester United thought to be interested, put the Cherries ahead.