Rossi joined Villarreal from United in 2007 after failing to make an impact at Old Trafford.
“There’s no chance of me rejoining Manchester United,” the 23-year-old told Four Four Two. “I’ve nothing to prove to anyone back there and I’m very happy at Villarreal
“I enjoyed my time there but it didn’t work out and, like I said, I’m enjoying myself in Spain and I’m playing for my country.”