Jack Riewoldt, Dustin Martin and Marlion Pickett were all fined by the match review officer for indiscretions during the Tigers' last-start loss to Port Adelaide.

But it is a spate of 50m penalties the reigning premiers have conceded in recent weeks that has most annoyed Hardwick.

"We want our players to play to the line and sometimes they're going to step over," Hardwick told reporters on Sunday.

"We accept that as a footy club but it's probably the 50-metre penalties that we're most disappointed with.

"We're by far (ranked 18th in the AFL) in that category.

"It's something we've spoken with our leaders about and we think our players can be a lot better in that regard because it's just giving up cheap goals to the opposition.

"The quality of games is so tight at the moment that you can't afford to do that."

In a sign of the times, with many young families joining players in AFL clubs' travel bubbles, further Richmond offenders will have to change a nappy for captain Trent Cotchin's baby boy.

"We've got a bit of a protocol at the moment that if you do give away a 50, young Parker's nappy will be changed by that person," Hardwick said.

"That's a good dividend to make sure we don't give away those penalties.

"It started this week, so I'm pretty sure we won't be giving away any fifties (against Gold Coast)."

Experienced midfielder Cotchin will return for the Suns clash at the Gabba on Monday night after being managed in round 11, while Oleg Markov and Jack Graham have also been recalled.

Josh Caddy, Jack Ross and Derek Eggmolesse-Smith have all been dropped and premiership player Bachar Houli is still another week away from being cleared to make his long-awaited return.

Gold Coast have opted to leave David Swallow and Jarrod Harbrow out for the encounter with Richmond but the experienced pair will return against Carlton on Friday.

Sean Lemmens has been dropped while Alex Sexton, Nick Holman and Caleb Graham come in to face the Tigers.

Australian Associated Press