Giuseppe Rossi continues to train with Manchester United.
The free agent has been training with his former club for a month.
The 32-year-old Italy international striker, who is a free agent after leaving Genoa last summer, is without a club amid a career blighted by serious injuries.
He made 14 first team appearances under Sir Alex Ferguson before leaving for Villarreal in 2007. 12 years later, and he has returned to the club.
Rossi has been linked with Tottenham in recent weeks.