Manchester United defender Rio Ferdinand has assured Usain Bolt he'll have a word with manager Sir Alex Ferguson about a trial.

Olympic sprint legend has declared he wants a trial at United.

On Tuesday morning, Ferdinand messaged Bolt on Twitter to say: "if you want that trial at Man Utd shout me, I'll speak to the boss!! Well done in 100m, waiting for you to smash the 200m now!"

Bolt replied: "After the Olympics we work on man @rioferdy5"