Lochie O'Brien signs a two-year contract extension to remain at Carlton until the end of 2021.

I feel very lucky to have had the opportunity to get drafted, play my first AFL game and now sign on with the Club for a further two years, OBrien said.

We know we have a lot of improvement to come and Im excited to be part of that with this group under Bolts. Im grateful to the Club for the opportunity and want to continue training hard and learning the craft in my first year and beyond.