Former Murray Bushranger Mathew Walker, who was a Greater Western Sydney Academy member, joined Hawthorn with the 63rd pick in last year's NAB AFL Draft.
The Hawks sent a future fourth-round pick to Collingwood in return for that selection then swooped on Walker, with the Giants declining to match the bid.
A knee injury held the 19-year-old forward back in his first pre-season with Hawthorn, but he played in the club's opening JLT Community Series against Brisbane on Sunday.
