Richmond has added seven Tiger cubs to its extended squad for Sunday's clash with St Kilda at Marvel Stadium. 

Thomson Dow, Samson Ryan and Noah Cumberland are all a chance to be recalled to the senior side to face the Saints, meanwhile, emerging key forward Jacob Bauer could be named for his first game of the year. 

Also featuring in the squad are mid-season recruit Jacob Blight and young defender Kaleb Smith, who have two and three AFL games respectively to their names. 

Rounding out the potential inclusions is energetic small forward Matt Coulthard, who last featured at the level in Round 10 of this season. 

Out of the Round 22 squad is Dustin Martin, after the legendary Tiger announced his AFL retirement on Tuesday. 

Also being replaced in the side are Tom Brown and Steely Green, who both suffered ankle injuries last Saturday against North Melbourne, and Liam Baker, who suffered a concussion at training on Thursday morning and will now miss the next two games.

The Tigers will confirm their final Round 22 side on Friday night at 5.00pm AEDT.

Star midfielder and 2023 Jack Dyer Medallist Tim Taranto will play his 150th AFL game on Sunday.