West Ham were dumped out of the FA Cup by Wigan Athletic as David Moyes blew his top after Arthur Masuaku was sent off for spitting.

Will Grigg opened the scoring after just seven minutes at the DW Stadium and added a second from the spot as Latics, winners of the competition in 2013, triumphed 2-0.

West Ham had Masuaku sent off early in the second half following an off-the-ball incident involving Nick Powell. There were suggestions he may have spat at the Wigan player, with manager Moyes later labelling the act 'despicable'.

"Ultimately, Arthur, what he's done, was despicable," Moyes said.

"He will deserve everything he gets and he will get something off us as well. It's unacceptable, totally unacceptable.

"The referee (Chris Kavanagh) doesn't see it and can't see it. So it was the players' reaction that got him sent off. Ultimately they got the right decision so I can have no qualms about it.

Moyes was already without eight senior players for this tie and he admitted he was stunned by Masuaku's act.

"I've not seen it from him," he added.

"We've given him a game, played him all the time, tried to give him a chance, he wasn't really in the team.

"We like him, he's a really good boy around the club. I've enjoyed him so I'd have to say it is out of character. If you do that then you're going to get the punishment in any walk of life.

"I just asked him, did he spit and he said, 'Yes'. You can't do that anywhere. We'll deal with it appropriately."