When you call the young gun's mobile, the Port Adelaide theme song plays.

Rohan follows Geelong, not the Power, he just likes their song.

As of tonight, the Cobden teenager will follow a different AFL club - the one he gets drafted to.

The 18-year-old, who has tried to get rid of the Port Adelaide song but was unsuccessful, is a top-six prospect at tonight's AFL draft.

He has naturally been uneasy this week.

"I'm so nervous," he said.

"I can't even sit still. I always have to be doing something to try and take my mind off it."

With their names virtually guaranteed to be called out early, Rohan and fellow Cobden Football Club export Ben Cunnington will attend tonight's draft at the Melbourne Convention Centre.

"I just can't wait until it's all over and I go to a club," Rohan said.

"People are telling me it's going to be Sydney (pick six) or the Kangaroos (pick five)."

On Sunday he will leave his home just outside of Cobden and his parents Belinda and Jim, sisters Stacey, Rebecca and Jessica, brother Ash and ninth-month-old niece Nara for the big smoke.

It's going to be a big four days for the explosive Rohan, who aims to get back for Stacey's 21st tomorrow night before a farewell/belated 18th for himself on Saturday night.

Guests at the parties will include farmers Graeme and Colleen Howarth, who live across the road from the Rohans.

Graeme joked the draft was untimely as it meant Rohan wouldn't be there for harvest.

The draftee from the Geelong Falcons has helped him on the farm since the Rohans moved to their house about seven years ago.

"He's been good," Graeme said. "He does anything you want."

The football field is where Rohan does what you don't expect.

Take the opening match of the under 18 national championships when he took a jaw-dropping grab for Vic Country.

"My teammate kicked it long and the guy was just standing there so I jumped up his back and on the top of his shoulders,'' he said.