Jose Mourinho wants Paul Pogba to give his best for Manchester United after winning the Russia 2018 World Cup with France.
The 25-year-old, who returned to United from Juventus two seasons ago, hasn't been consistent for the Red Devils and Mourinho has questioned the Frenchman's focus at Old Trafford.
"I don't think it's about us getting the best out of him, it's about him giving the best he has to give," Mourinho told ESPN FC.
"I think the World Cup is the perfect habitat for a player like him to give [their] best.
"Why? Because it's closed for a month, where he can only think about football. Where he's with his team on the training camp, completely isolated from the external world, where they focus just on football, where the dimensions of the game can only motivate.
"During a season, you can have a big match then a smaller match, then one even smaller, then you can lose your focus, you can lose your concentration, then comes a big match again.
"In the World Cup, the direction of the emotion, of the responsibility, of the big decisions is always growing up.
"You are in the group phase, you go to the last 16, to the quarter-finals, to the semi-finals, to the finals. This feeds the motivation. This feeds the concentration of a player.
"So I think it was the perfect environment for him."