The young forward impressed at United and on loan spells with Newcastle and Parma - but in the summer of 2007 he was sold to Villarreal for £6.6 million.
A year later he was one of Europe’s most in form strikers, and a regular in the Italian national team.
In 2010-11 he was sensational, scoring 32 goals in 56 appearances, and for 2011-12 it appeared that the career of the then 23-year-old from Teaneck, New Jersey was going in one direction.
Then injury struck.
On the 26th October 2011 Rossi tore his anterior cruciate ligament in a game against Real Madrid and he was out for six months, in April 2012 he did the same injury and his career looked over.
But this season he is with Fiorentina, and banging in the goals once again after his €10 million switch from the then relegated Villarreal side.
Now one man has been mentioning him in glowing terms once again, as the biggest mistake of his career.
The man in question is President at his former club Parma Tommaso Ghirardi. Parma celebrate their 100th year to the day this Sunday and the President has been speaking about his best and worst moments as president.
He rated his best signing as Antonio Cassano, his best manager as Claudio Ranieri and his biggest regret - not re-signing Rossi in 2007.
The president, who had only just took over the role when he moved for Rossi, stated:
“My biggest regret is Giuseppe Rossi. I offered Manchester United €7m for him, but Villarreal did the deal for €9.5m. I should’ve pushed myself harder to get him.”
We imagine he is not the only person who regrets letting Rossi slip through his fingers - a few in Manchester will share the sentiment.
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