The 31-year-old spoke to us at the Aon Training Complex on Wednesday after his latest session with caretaker manager Ole Gunnar Solskjaer and the first-team squad.
After leaving the club in 2007 to join Villarreal, the striker is delighted to be back working with some of the best players in the game and feeling sharp and confident. Rossi, who was most recently with Genoa, is relishing the opportunity to enhance his fitness and hopes to find a new club soon.
Here's what the ex-Italy international had to say in our exclusive interview.
So, Giuseppe, what brings you back to United?