Brentford youngster Montell Moore has been found guilty of handling stolen goods.
The 19-year-old drove a stolen £900 Honda motorbike through Chiswick on December 22 last year.
He has been fined £500 and ordered to pay £400 in costs, plus a £50 victim surcharge.
Get West London quotes a Brentford spokesperson as saying: "Montell is well aware of the mistake he has made. He has a criminal conviction and the club's reputation has been affected.
"The club has disciplined Montell internally and made it very clear he is on a final warning in relation to his conduct."
Moore, who signed a three-year contract with the Bees last summer, is currently on loan at Danish top-flight side FC Midtjylland until the end of the season.
