Hawthorn will unveil two debutants on Saturday as part of four changes to the team set to face Melbourne at UTAS Stadium. 

As announced on Tuesday, Nick Watson has been ruled out of Saturday's clash with hamstring tightness, paving the way for exciting forward in Matt Hill to make his debut. 

Earlier today, key defender Noah Mraz was also named to play his first game, rewarding his consistent form at VFL level. 

Meanwhile, veteran Hawk Jack Gunston will make his return to the side following three games on the sidelines with a foot injury. 

Youngster Will McCabe rounds out the changes for the trip to Launceston, coming in for his second match at the elite level. 

In addition to Watson coming out of the team, Calsher Dear has been omitted, while Ned Reeves and Karl Amon have suffered injuries and will miss the Round 17 game. 

The Hawks will celebrate their 25th anniversary in Tasmania this weekend, with plenty on offer for the loyal brown and gold Tassie faithful. 

Hawks members and fans are encouraged to start their day early at Launceston Town Hall from 10am and enjoy a special 25-year exhibition at the venue, before taking off on an historic Hawk Walk to UTAS Stadium from 11.15am.

Then, be in your seats from 12.45pm for a special pre-game ceremony celebrating the Tasmanian connection over the past 25 years.