Edinson Cavani's former coaches are backing him for success at Manchester United.
Davide Ballardini worked with the striker at Palermo.
He said: “I am sure he will be crucial for Manchester United.
“He is serious but he has a strong personality — and I believe Man United will get an advantage in the Premier League with this signing."
Cavani's three-year spell at Napoli saw him score more than 100 goals under Walter Mazzarri, the former Watford boss.
Mazzarri said: “Cavani is the classic player whom every coach would like to work with. A very strong player and a great man.
“He is a fighter. In Manchester United his strength can be very important for all the team."
