Richmond defender Troy Chaplin set to play against St Kilda but fitness tests for Nick Vlastuin, David Astbury Troy Chaplin in the hands of trainers after twisting his knee against the Bulldogs. INJURED Richmond trio David Astbury, Nick Vlastuin and Troy Chaplin are all a chance to play this week, with coach Damien Hardwick describing the latter's availability as "dodging a bullet." Astbury (hamstring), Vlastuin (shin) and Chaplin (knee) appeared long-odds to face St Kilda this weekend after going down against the Western Bulldogs. But Chaplin in particular has made a quicker-than-expected recovery. "Troy, we think, is a 90 per cent chance of playing, which is an outstanding result for our guys and our medical team who have worked incredibly hard to get him up," Hardwick said before training today. Cotchin says Tigers are finals material People who have had knees before they can slip on you and he had one of those episodes. Obviously there's a bit of scar tissue around it and he tweaked it a little bit. But he had minimal swelling which is a great result and we think we dodged a bullet there which is fantastic. SuperCoach backline mayhem - best trade options He's available this week which is an enormous result for us because he's an important player coming up against a champion player in Nick Riewoldt. He'll get a chance to run with Nick at various stages. Hardwick said Astbury and Vlastuin would require fitness tests at Punt Rd this afternoon, but wouldn't rule either out. "We're confident both of those guys will get through training and we'll make a decision from there," he said. Nick Vlastuin pounces on a loose ball against the Bulldogs.