Manchester United boss Sir Alex Ferguson has said that Wayne Rooney's first game for the club was as good as any debut he has ever seen.
The 18-year-old England striker scored a brilliant Champions League hat-trick in a 6-2 win over Fenerbahce.
Sir Alex said: "It is a great start for him. That's why we signed him - he's got great potential."
Manchester United are so impressed with Rooney that they've brought his 13-year-old brother to the club as well.