The reigning premiers chose towering West Australian at pick 19 overall on Friday night, leaving him to move states over the weekend.

Considered the best ruckman in the draft, the quietly-spoken teenager is 205cm tall but slightly built and he said putting on weight would be important.

English said he had watched the 2016 grand final twice.

"I thought it was a really good story," he said.

At the other end of draft night, the Western Bulldogs picked up Bendigo forward Fergus Greene at No.70.

The 18-year-old said his selection came as a surprise and he had spent the evening at home with close family members.

"When it got to the 60s and 70s I thought, this is where if I go, I'll probably be a chance," he said.

"I didn't want to invite too many friends around because I didn't want to waste their time, but I did catch up with them later in the night which was good."

One quality put Greene ahead of the rest of the draftees – he scored 15.6 on the infamous beep test at this year's Rookie Me combine event, the best of any of his peers.

Greene said he had trained for the test by running 10-15km three or four times a week.

"Getting out of bed is always tough, but once you do that you can get going," he said.

"It was around exam time that the combine was on, so I was able to have a bit of free time that I could do it during the day."