St Kilda midfielder Seb Ross has signed a three-year contract extension.

Ross, who was already contracted for 2018, will now be a Saint until the end of the 2021 season.

The re-signing comes just weeks after Ross won his maiden club best and fairest.

โ€œThe Saints are where I always wanted to be, so the decision was pretty easy,โ€ Ross said. 

โ€œThe Saints took a chance on me as a young 18-year-old. There were a few guys picked from our draft so Iโ€™ve grown up with those guys for the past six years.

โ€œItโ€™s a really exciting time, weโ€™ve got a few young stars coming through and I think weโ€™re on the way up."

Ross said the club's decision to recently re-sign coach Alan Richardson helped his decision to re-commit. 

โ€œThat probably weighed in my decision. He (Richardson) is someone who has installed a lot of belief in me to help me become the player I want to be.

โ€œI love playing under him.โ€

Ross played every game this season, averaging a career high 29.8 disposals, five clearances and 4.3 tackles.