David Moyes described the decision to allow Bournemouth’s late equaliser against West Ham to stand as a “killer’ for his side.
The Hammers drew 3-3 after referee Bobby Madley allowed Callum Wilson’s injury-time goal despite it initially being ruled out for offside.
West Ham were furious as they felt Wilson was not only in an offside position but used his hand to divert Nathan Ake’s header into the net.
It left Hammers boss Moyes bemused and denied his team a victory in their bid to climb away from trouble.
“I think he said the assistant referee only put his flag up to draw attention to it, and I’ve never heard of that ever,” Moyes told reporters after the game.
“To lose a goal like that is a killer – it’s hard to take.”
The Scot added: “If the assistant referee raises his flag, what would it be for? Offside?
“Arguably you could say that it was offside, but I’m giving them the benefit of the doubt. But I can’t give them any benefit of the doubt for their player raising his hand.”
The result left West Ham one point and one place above the Premier League relegation zone. A win would have taken them to 13th in the table.