Former Manchester United forward Dimitar Berbatov has revealed the words of wisdom he passed on current United star Anthony Martial when the pair were together at Monaco.
Bulgarian star Berbatov won two league titles and the League Cup while at United between 2008 and 2012, but he assisted his former club when it came to advising their future forward.
Eyebrows were raised when United shelled out up to £58m for the Frenchman in 2015, but he has become a firm favourite with the club's fans despite relatively limited opportunities.
“I went into the first training session and saw Anthony Martial, James Rodriguez, Geoffrey Kondogbia, Yannick Carrasco, Bernardo Silva,” he told ESPN .
“These young players were flying around me and I was thinking: 'What the f***? I am too old or are these guys too good.'
“Martial had something special and he's developed. He'll develop even more.
"You could see how fast and strong he was. The only thing lacking was to be more confident."
And Berbatov helped with that confidence by lining up against Martial - in defence.
“I liked playing in defence in training; it helped me understand the defenders well.
“Martial would come towards with me the ball. Sometimes he hesitated; he didn't want to take me on because he thought I was going to take his ball. The self belief was not there.
“I would say: 'Anto, you are so quick, you can go past me. Don't be afraid to do that to every player because you are so quick.' He's a top guy.”