THE SYDNEY Swans have secured exciting academy graduate Callum Mills until the end of the 2018 season.

Mills has made a seamless transition to AFL football this season after the Swans matched Melbourne's bid of pick No.3 at last year's NAB AFL Draft. 

The 19-year-old debuted in round one against Collingwood and has not missed a game.

Playing predominantly across half-back, he has averaged 17 possessions, 3.3 rebound 50s and one contested mark a game in the first six rounds. 

Most impressively, Mills has played with the poise of a veteran, with his decision-making and attack on the ball standing up well under AFL pressure.

AFL.com.au can reveal that, like fellow Academy graduate Isaac Heeney a year earlier, Mills joined the Swans on a three-year deal rather the standard two-year contract for draftees. 

Recruited from the Swans' academy, the North Shore product played most of his junior football as an on-baller and is likely to move into the midfield eventually. 

With the Swans having secured Isaac Heeney from their academy at the end of 2014 – when Melbourne bid pick No.2 for the Cardiff local (13km west of Newcastle) at the 2014 national draft – their local talent program has packed a big one-two punch over the past two years. 

Mills made the 2014 All Australian under-18 team after starring for New South Wales-ACT as a bottom-aged player in that year's NAB AFL Championships. 

Injury restricted Mills in his final junior season last year, but he trained as regularly as he could with the senior Swans squad.