Sir Alex Ferguson has admitted Wayne Rooney told him he should have signed Mesut Ozil, reports The Telegraph.
However, in that summer, Ozil left Werder Bremen for Real Madrid after starring for Germany in the World Cup.
Ferguson revealed the Manchester United star asked him to sign the German playmaker in 2010 before asking to leave the club for the first time over the Red Devils' lack of ambition.
And, after Rooney asked Ferguson to sign Ozil, the ex-United boss said he responded to the England international by telling him: "My reply was that it was none of his business who we should have gone for.”
Ferguson believed Rooney was wrong in his theory that United weren't ambitious enough and claimed he was happy with him and Javier Hernandez in attack for the Old Trafford outfit.
Ozil, who has now signed for Arsene Wenger's Arsenal side, is starring in the Premier League and looking a fine player for the Gunners, who currently sit top of England's elite division.