Melbourne have appointed co-captains for the coming AFL season and they will be two of the youngest in the sports history.

Jack Trengrove, 20, and Jack Grimes, 22, will share the captaincy, taking over from veteran forward Brad Green.

Demons coach Mark Neeld said he and the club had found it impossible to split the two young players as they searched for a captain.

Neeld said he was unconcerned about the youth of Trengrove and Grimes and was confident they had the maturity to lead the game’s oldest club this year.

However he said telling Green that he would no longer be captain and had been dropped from the leadership group was one of the hardest things he had to do.