The 22-year-old had a breakout year last season, his fourth for the club. He has played 70 games for the Dees.
Melbourne coach Simon Goodwin said the Demons have two strong leaders.
“Nathan and Jack make a strong partnership. Nathan has been a very strong leader and we think Jack is now ready.”
— Melbourne FC (@melbournefc) February 10, 2017
It will be the first year the Demons have run with co-captains since the partnership between Nathan Jones and Jack Grimes in 2014.
But Goodwin believes the co-captaincy model works and it’s here to stay.
“We think this is a model we might have for many years moving forward. It’s an incredibly strong partnership.”
“We think co-captaincy is the best model for the Melbourne Football Club. We feel like we’ve got the best two guys for the job.”
Related: ZeroHanger’s 2017 Melbourne best 22.
The 2012 father-son draftee said he was excited to find out earlier in the week.
“I was initially surprised by the news but Jack is an outstanding guy and I’m really excited to lead with him,” Jones said.