Jetta was set to become an unrestricted free agent at season’s end, although his contract extension now sees his future all sewn up.
Melbourne’s General manager of football operations Josh Mahoney tole the club’s website they were thrilled to keep Jetta around for another three years.
“We are delighted that Nev has agreed to a new three-year extension,” Mahoney told Melbourne Media.
“Nev has been a consistent performer for us, for a long period now and is a great example of resilience and maximising opportunities.
“A three-year deal is great reward for Nev’s commitment to our club.”
After struggling to cement his spot in the Melbourne team over the first five years of his career, Jetta has played at least 16 matches per season since 2014, and has played all 16 this season.
The defender is averaging 12.7 disposals, 3.0 marks and 2.9 tackles per game.