ANOTHER two members of Richmond's premiership side have re-committed to the club with defender Dylan Grimes and ruckman Toby Nankervis both penning new deals.

Grimes, 26, was due to come out of contract at the end of this year but signed for another three seasons to keep him at the Tigers until the end of 2021.

Nankervis, 23, had been tied up until 2019 but tacked an extra year onto his contract.

The news comes in the wake of young gun Jack Graham, 19, signing a two-year contract to see him locked in at the Tigers until the end of 2020.

"It's pleasing to see that Toby, Dylan and Jack are all invested in the long-term future of the Richmond Football Club," football manager Neil Balme told richmondfc.com.au.

"Toby and Jack came to Richmond just over a year ago and seamlessly fitted into the club's culture. They were prepared to work hard from day one and this ultimately showed with their success in 2017.

"Dylan has been at Richmond for eight years and has been a dedicated servant of the club over that time. He is a very skilful footballer and a great mentor for our younger players, like Toby and Jack.

"Toby, Dylan and Jack are firmly focused on getting the most out of this pre-season and taking their football to another level in 2018."

Fellow members of the flag-winning team in Bachar Houli, Shaun Grigg and Nathan Broad are in the final year of their contracts, as are midfielders Oleg Markov and Corey Ellis, small forward Shai Bolton and defender Ryan Garthwaite.

Injuries have plagued Grimes for much of his career but he played every game in 2017 and finished fifth in the best and fairest.

Nankervis lined up in all but one game after managing 12 in three years at Sydney.

He crossed over from the Swans at the end of 2016 in return for pick No.46 in that year's NAB AFL Draft.