Sir Alex Ferguson has challenged Wayne Rooney to beat Cristiano Ronaldo's tally of 42 goals in the remainder of the season.
The in-form striker's double against AC Milan took his tally to 30 goals for United and, with the Reds possibly having up to 14 games left to play this season, manager Ferguson insists that Rooney is capable of surpassing even Ronaldo's 2007-08 mark.
"It's a challenge [for Rooney to get 42 goals]. I was just happy for him to reach 30, to be honest with you," Ferguson said after Wednesday' win over AC Milan.
"But he keeps on improving and he was sensational again tonight.
"He is still carrying an injury, nothing serious, but with a game on Sunday (against Fulham) we wanted him off early."
Rooney is eight Premier League goals away from Ronaldo's mark of 31 from the season when he won the European Golden Shoe.