MELBOURNE has locked away midfielder Dom Tyson until the end of 2019 after extending his contract beyond the end of next season.

The 23-year-old joined the Demons three years ago after being traded from Greater Western Sydney and has been a solid performer.

He finished second in the club best and fairest in his first season, showing his elite talent around stoppages.

After being quiet in 2015 due to a niggling knee injury he bounced back to his best for Melbourne this season and finished fourth in the club's best and fairest.

Melbourne football manager Josh Mahoney told it was good to sign Tyson ahead of schedule.

"Dom’s stoppage craft and his ability to kick goals makes him an important part of the mix in our midfield," Mahoney said.

"He has added different layers to his craft each year and we look forward to that continuing as our young midfield develops as a group."

Tyson has played 58 of a possible 66 games with Melbourne after playing 13 games for Greater Western Sydney.

He said he was rapt to be part of the club's immediate future under new coach Simon Goodwin.

"For me, it’s good to get that security and have a good off-season and know that this is my future for the next few years. Hopefully I’ll play for the club for the rest of my career," Tyson said.

"I'm super excited to see Goody take over the role – he’s got a great relationship with players and we’ve already seen changes to the environment and day-to-day operations. He puts a high value on learning and knowing your craft as a footballer.

"I can’t wait to get back into training."