Richmond has upgraded 28-year-old rookie Matt Thomas to the Club’s senior playing list.

Thomas, who has shown strong form in the last few weeks at VFL level, filled a vacant spot on the Club’s senior list, as a replacement for injured youngster Nathan Drummond.

Drummond will miss the remainder of the season as he continues his recovery from a knee reconstruction.

Thomas endured a difficult start to 2015, with injuries limiting his pre-season and beginning to the season.

However, he has returned to his best form with Richmond’s VFL team, particularly in the past three matches, where he has averaged 28 disposals, six clearances and nine tackles per game.

Thomas has played 100 AFL games in his career so far, since making his debut in 2006.

He played eight seasons for Port Adelaide, before crossing to Richmond at the end of the 2013 season as a rookie.

He was elevated to the senior list for the 2014 season, playing 13 games and averaging 20 disposals, six tackles and four clearances per match.