Manchester United midfielder Ander Herrera says they must keep their nerve against Liverpool today.
Herrera's two previous appearances against Liverpool at Old Trafford have both ended in victory – and last season he scored from the penalty spot in a 3-1 win.
He said: “The important thing for us is to keep our minds calm and stable because this kind of game you can easily receive a red card after five or 10 minutes because the passion and emotion is high.
"Our fans will make a big atmosphere and it will be very noisy, so we know we have to keep some mental balance.
"The game will not be won or lost in just five minutes. It will be 90 minutes and, if we win the match, then you will have to do it step by step.
“Both teams are in a very good moment, but I have played two Premier League games against Liverpool at home and we have won both – and, hopefully, we can keep that run going."