The Jamaican sprinter called on supporters to convince Ferguson to sign him for the club as he showed off his London 2012 medals.
Bolt has previously attended United's Carrington training ground where he gave former player Cristiano Ronaldo tips on his sprinting.
"He's a bit of a character and a big United fan," Ferguson said.
"The people from these small islands, like Dwight Yorke from Trinidad & Tobago, they all play football and he probably played at school level or youth level or something like that. It'd be nice to get him up here, I think it'll be good."
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