Brisbane Lions coach Chris Fagan has challenged Charlie Cameron to find a way to shake off Richmond defender Dylan Grimes in Saturday night's qualifying final at the Gabba.

Grimes limited the Lions forward to just seven touches in the Tigers' 27-point win at the MCG in round 23, using a number of borderline physical contests to prevent Cameron getting a good run at the ball.

Fagan said on Tuesday he had queried a couple of the challenges with the AFL's umpiring department.

He wasn't, however, expecting the umpires to make life easier for Cameron when he and Grimes face off again this weekend.