Wayne Rooney - Debut
Robin van Persie - 3rd game
Sir Bobby Charlton - 6th game
Andy Cole - 7th game
Stuart Pearson - 9th game
Jimmy Greenhoff - 15th game
Denis Law - 16th game
Michael Owen - 20th game
Ruud van Nistelrooy - 22nd game
Dwight Yorke - 24th game
Willie Morgan - 30th game
Brian McClair - 43rd game
Amid all the excitement on Sunday, it's worth putting Robin van Persie's achievement into perspective after his hat-trick ensured a 3-2 win against Southampton.
The new signing took just three games for Manchester United – two starts – to bag a treble and elevate him to an elite group of players who have quickly become Old Trafford heroes with their goalscoring exploits.
The only player in the current squad who has scored a hat-trick earlier in his United career than van Persie is, of course, Wayne Rooney, who smashed three goals on his debut in a Champions League tie with Fenerbahce in 2004. This equalled a feat managed for the Reds by Charlie Sagar in 1905.
A number of post-War stars have netted hat-tricks in their first season, including the recently-departed Michael Owen who showed vintage form in the win at Wolfsburg in his 20th appearance but only eighth start.
Stuart Pearson took only nine games to blast a treble, with