LOOKING at Chris Gordon, you will see a strong, fit athlete.

And that's to be expected, given he covers up to 20 kilometres in a game as an AFL boundary umpire.

But underneath it all, Gordon endures a private battle with haemophilia, a rare disease that prevents his blood from clotting as usual.

It's a condition that ended his own football-playing ambitions at a young age.

"All I wanted to do was play AFL," Gordon told AFL.com.au.

"I wanted to be an AFL footballer, just like Buddy Franklin.

"I played until I was 13, and then obviously at the hospital, they said, 'You can't play any more'.

"I tried to pull their leg as much as I could, but unfortunately that wasn't the case.

"Mum got pretty upset. Probably more upset than I did. I just wanted to play football, but as long as I was involved I was pretty happy."

Becoming an AFL umpire was the next best thing for Gordon, and in just four years at the top level he has excelled.

And he's held his nerve in high-pressure games, including three draws and an Anzac Day blockbuster.

But being an umpire still carries risks for the 23-year-old.

"We're taught pretty well to read the play, so I stay out of it as much as possible," Gordon said.

"The only thing is obviously the soft tissue injuries that we may get, like hamstrings or calves, that may take a little bit longer for me to recover from."

So far that hasn't been a problem for Gordon, who can boast that he has never missed a game though injury.

His consistency at the top level hasn't gone unnoticed - he was given a coveted umpiring role on Grand Final day in 2011, at just 22 years old.

"I was nervous," Gordon laughs.

"I remember the first bounce. I started on the centre square, and I came off and Varcoe, I don’t know if you remember, kicked a goal in about five seconds.

"I remember running straight there and running the ball straight back. I'd done about a 250m sprint in 30 seconds and I remember getting back to the centre square to start for the next bounce and I was exhausted."

It's an experience he'd love to repeat, although he admits it took time for the enormity of the day to sink in.

"I think a few beers after the game certainly helped. It's a good celebration, and it's such a big experience. I think I probably struggled two weeks later. I was still on such a high from everything, and the intensity was so high.

"The emotional state, it sort of actually hit me probably two weeks after when I really sat down and watched the Grand Final again, and it was hard to believe I was out there on the day."

Gordon hopes to reach the 300-match milestone, and is attracting high praise from AFL umpires director Jeff Gieschen.

"He did make a rapid rise," Gieschen told AFL.com.au.

"I think that had a lot to do with his really professional attitude.

"He works extremely hard, whether that be on his running, whether it be on his throwing, or whether it be on his positioning etcetera. He's always working out in the gym, he's always doing the little extras.

"The other great thing about Chris is he's very humble. You wouldn't know that he's achieved that amount of success so quickly. He is very popular with his fellow umpires, and just a terrific guy to have around the group."

Follow Jacqui Reed on Twitter @JacquiReedAFL