Manchester United manager Sir Alex Ferguson lauded Javier Hernandez after the rookie striker steered his side into the Champions League quarter-finals.
The summer signing scored a brace, one in each half, in the 2-1 win against Marseille at Old Trafford to make it five goals in five appearances and 16 in all in his debut season.
Hernandez's remarkable impact has been a huge bonus for United, according to Ferguson.
He opened the scoring in the fifth minute by getting on the end of a cross from Wayne Rooney. His second in the 76th minute was almost identical with substitute Antonio Valencia supplying the delivery.
Ferguson said: "I think we are surprised. When we bought him we thought it would take him some time to adjust first of all.
"He has adjusted to the physical part very well and he is lasting 90 minutes very well now.
"That has given us great options because we look at the main strikers as Wayne (Rooney), (Dimitar) Berbatov and Hernandez. With Hernandez's form the way it is we can make some changes now.
"Hernandez's pace and movement is helping us. He is real handful. You see the first goal, they boy's movement is fantastic.
"Wayne is enjoying the freedom behind Hernandez and is in really good form at the moment."
Despite an own goal from Wes Brown with eight minutes remaining United advanced to the quarter finals for the fifth successive season.