"When I heard about it, I was wishing that was me! I was saying that because that's a big contract, a lot of money to go round."
Bolt became friends with Ronaldo after giving the winger tips on sprinting during a visit to United's training ground last May. But he is still confident United will survive without Ronaldo.
Bolt said: "He made his decision and it's sad he left, but we've got other guys who can score goals.
"I love football and I love United. I used to play but I'm no striker. I'm more of a defender or midfielder. I can't score goals."