The American-born Italian scored nine times in 19 games for Parma and believes he can return to Old Trafford next season and force his way into the first-team picture.
The Italy Under-21 international has played down talk of a summer move to Juventus and has urged Sir Alex Ferguson to give him a chance following the news that United forward Louis Saha will not be fit for the start of the new campaign.
"It is all a bit confusing at the moment," said Rossi.
"All I will say is that my main goal is still what it always has been - that's to cut it with Manchester United.
"Joining Juventus is just talk. I've read about it once or twice but it's not on my mind."