Speaking to Genting Casino, Petit said: "It’s embarrassing from Chelsea fans that they booed Mount. However, you can’t just want to leave the club when things aren’t going well on the pitch, you have to be stronger than that mentally. Right now, he’s playing for Man United, one of the biggest clubs in the world, and you know what you signed up to when you signed for them.
"He’s coming back from a long-term injury, a professional footballer, and an athlete at the highest level must improve mentally. Before he was injured, he was playing like he walking on eggshells - very fragile mentally - and he’s kind of like Marcus Rashford at United. Mount arrived from Chelsea and he doesn’t look strong mentally. I used to be like that and it used to affect my performance on the pitch, but come on! You wake up in the morning, drive a Lamborghini, you need to look in the mirror! He was booed by Chelsea fans, but at the end of the day, he wanted to stay at the club."