Nemanja Vidic is convinced Manchester United will not be so casual against Liverpool on Saturday as they were against Inter Milan when they look to take a decisive stride towards the Barclays Premier League title.
It was far from a vintage European night from United as they rode their luck at times in the second leg of their Champions League last-16 clash with Jose Mourinho's Serie A leaders at Old Trafford.
Indeed, Inter twice struck the woodwork through Zlatan Ibrahimovic and Adriano.
Fortunately for the reigning European champions, a goal at the start of each half from Vidic and Cristiano Ronaldo - scoring their sixth and 16th goals of this season respectively - paved their way into the quarter-finals.
It means the quintuple is still on for Sir Alex Ferguson, who must now turn his attention to the visit of Liverpool, knowing a victory will virtually end Rafael Benitez's title hopes.
But centre-back Vidic insists United must improve on last night's display if they are to move 10 points clear, and virtually out of sight of Liverpool.
"We need to forget Inter now," demanded Vidic.
"Liverpool is the next big game we must play, and they are in good form, full of confidence. They had a great win against Madrid (4-0 on Tuesday).
"But we're at home in front of our crowd, and I hope we are going to be much better.”