Sunderland boss Steve Bruce has questioned the mental toughness of his players after their dismal 1-0 defeat at Wigan Athletic.
Just a week after shocking Arsenal at home, Sunderland struggled at the DW and were undone by a Hugo Rodallega winner.
I think it is mentality, that is all it is. You have to have a big, strong mentality to play in the Premier League," said Bruce.
"We've seen strange things. Wigan got beat 9-1 last week, we beat Arsenal and then they've turned us over."