Manchester United celebrity fan Usain Bolt has posted a video message to Jose Mourinho.

The world's fastest man is a big fan of Manchester United and has sent the Portuguese boss a personal message.

In a video clip he said: “Well Jose, its Usain Bolt, as you know.

“I'll be watching you this season and I expect nothing but greatness from you as I will bring greatness.

“So I'm looking forward to it. We need a championship."

Mourinho took to Instagram to thank the Jamaican sprinter, saying: “tks [sic] a lot champion. We all wish you more glory at the olympics."