Jose Mourinho's advice for Dele Alli has shown Marcus Rashford the way at Manchester United

Jose Mourinho recently went viral on social media after footage from Amazon Prime series 'All or Nothing: Tottenham Hotspur' resurfaced. Mourinho is talking to Dele Alli in the footage, having a candid conversation in the manager's office about his career.

"I am 56 now and yesterday I was 20, you know that I mean? Time flies," Mourinho said in the documentary. "I think one day you will regret if you don't reach what you can reach. I am not expecting you to be the man of the match every game.

"I am not expecting you to score goals every game. I want just to tell you that I think you will regret. You should demand more from yourself. It should not be me demanding more from you. Nobody else, you. I think you should demand more from yourself."

ALSO READ: United receive surprise Cody Gakpo transfer boost

Mourinho's comments have often stood the test of time and his warning to Alli was no exception. Alli scored just eight goals in the Premier League in almost two full seasons under Mourinho and he was unable to arrest his decline, despite conversations regarding the trajectory of his career. Alli had the world at his feet at Tottenham but his regression has been remarkable and sad to follow.

After demonstrating the potential to become an exceptional talent, Alli established himself as one of the Premier League's finest players in his debut season with Tottenham in 2016/17. The midfielder exploded under the guidance of Mauricio Pochettino, but he was unable to sustain world-class performances.

Alli gradually became less and less effective in matches and Mourinho tried to inspire improvement from him during his tenure. Ultimately, he couldn't, nor could Antonio Conte, and Alli was offloaded to Everton in January this