Nemanja Vidic is acutely aware the eyes of the world will be on Anfield this Sunday.
Manchester United's trip to Liverpool is always a huge game, but the tension will be even greater this time around as it is Liverpool's first home game since the damning judgement on the deaths of 96 fans at the 1989 FA Cup semi-final at Hillsborough was delivered last week.
And with the stand-off between Luis Suarez and Patrice Evra ongoing, Vidic accepts it will be a major test for all concerned. He said: "I am aware of the sensitivity of the day. Everybody is. All over the world they will be watching this game. It is probably the biggest derby and we have to show we are capable of keeping a good atmosphere and being a good example to the kids."
Appeals for calm have already been delivered by Sir Alex Ferguson and also respected United fans' groups, who felt it necessary to speak out in the wake of chants heard at Old Trafford last Saturday.
United need to maintain their focus as they attempt to end a five-game sequence without a win at Anfield, their worst run for over two decades.