Usain Bolt's dream of becoming a professional football player is very much alive.

He made his full debut for Central Coast Mariners on Friday in a 4-0 victory over Macarthur South West United and scored twice.

Not a bad way to mark your first start.

Bolt's first goal was a very tidy finish from a tight angle, while his second - a simple tap-in - came courtesy of a defensive mix-up.

It's no secret that the Jamaican has his doubters but he showed promise against Macarthur and proved that, slowly but surely, he is improving.

Asked on the sidelines if he thinks he's making progress, the world's fastest man said: "I think I made some slight mistakes.

"But it was my first proper game with the first team so I'm just happy I got the chance and I'm proud of myself.

BOLT IMPRESSES ON FULL DEBUT

"It was a big deal. Scoring a goal in your first proper match is a big deal. It was a good feeling because this is what I’ve worked towards.

"I try to improve myself and get better and I'm on the way to doing that. I'm learning a lot and I feel like the simple things are the ones that matter.

"I watch football so I understand the movement but the simple things like locking my ankles, getting into space, pulling away the defenders... I've learned a lot.

"I've been improving so I'm just happy I could come out here and show the world I'm improving. I think I've improved in every area.

"My touch is better, my vision needs to improve, my running off the ball needs improving the most. I've just got to continue improving."

Highlights from Bolt's full debut have now emerged and they show he's right about where he needs to improve to earn a professional contract.

The 32-year-old's touch and link-up play needs tightening up, but he's at least getting into good goalscoring positions, which suggests he has a future as a striker.

Only time will tell whether Bolt truly has what it takes because Friday's game was only a pre-season friendly, though there's no denying he's getting better and better.