Sunderland boss David Moyes was angry over Southampton's opening goal for their 4-0 thrashing at home.

The Black Cats capitulated horribly after going 1-0 down on the half hour, eventually losing comfortably to the EFL Cup finalists.

However, Moyes insisted that the opener, which appeared to go in off striker Manolo Gabbiadini's arm, should not have been allowed by referee Paul Tierney.

The Scot said: "Actually, we had played well for 20, 25 minutes, maybe as well as we had played here this season at times without making enough opportunities.

"Look, the goal goes in - and the first goal is really important because Southampton are a team who have been struggling for results, they had lost five or six of their games recently, so the first goal in today's game was going to be really important for both teams.

"The boy puts it in with his arm. It doesn't touch anybody's head, it doesn't do anything like that, it just goes straight in off his arm. It's a great cross in, I must say, by Bertrand and it's difficult for the referee maybe to see it.

"But it goes in off his arm, not any other part of his body, so that shouldn't have been given and it really changes the way it goes."