Antoine Dodson -- I'm Like a Young Roy Jones Jr.

Antoine Dodson says he's been training hard for his upcoming celebrity boxing match -- and tells TMZ Sports he truly believes he's like a young Roy Jones Jr.

Seriously.

Dodson -- who famously fought off a bedroom intruder a few years ago -- is set to take on a man who claims he's the actual burglar this weekend.

But Antoine says there was ANOTHER celeb he was supposed to fight first -- a famous person who really wanted to punch Dodson in the face.

Check out the clip -- and also watch Antoine throw his first punch in the video below ... yeah, he's like a young Roy Jones all right.