The Reds head into the fixture on the back of three consecutive 1-1 draws, and the German admits that his players' confidence levels have taken a hit.
United have lost just one of our last 12 Premier League games, but our interim manager says that letting leads slip against Burnley and Southampton has been a blow to morale.
“Obviously, when you're 1-0 up in three consecutive games and concede an equaliser, this also affects the mind of the players,” explained Ralf.
“They say we should have been 2-0 or 3-0 up and, all of a sudden, it's 1-1.