ADELAIDE livewire Wayne Milera has signed a three-year contract extension, tying him to the club until at least the end of 2020. 

The Crows made the announcement on Monday evening via their Facebook page. 

The 19-year-old, who is the nephew of former Sydney star Michael O'Loughlin, has quickly become a regular contributor in Adelaide's 22-man squad, featuring in the opening three rounds of the season.

He collected 23 disposals and kicked a goal against Greater Western Sydney in round one, and demonstrated his ability to remain calm under pressure.

Milera said he was excited about his future at the Crows. 

"It's just a really welcoming club ever since I got drafted," Milera said. 

"They are a great bunch of boys (and the) coaching staff is great. 

"It's a great club to be a part of and it looks like we're heading in a good direction."

Milera was recruited with the Crows' first selection, pick No.11, in the 2015 NAB AFL Draft and made his debut in round one last year against North Melbourne. 

The 184cm wingman has played 11 games and booted six goals.

Milera was diagnosed with Wolff-Parkinson-White syndrome – a heart condition that leads to an increased heartbeat – in mid-2015 and had surgery to correct the problem.