Legendary Triple M Adelaide radio presenter KG Cunningham believes Adelaide captain and key forward Taylor Walker needs to spend some time in the SANFL to regain some form.

On his show on Saturday morning Dead Set Legends, KG voiced his displeasure at Walker's lack of physicality against Geelong in their 22-point loss to the Cats on Friday night.

"I love this bloke, (but) I saw our captain not involved in any physical contests at all," KG said.

"That's the part that disappointed me. At no stage of that game did Tex try to intimidate any players or knock a player over."

He compared Walker to Geelong captain Joel Selwood, saying that's the way Walker should impose himself.

"That's a leader. That's the way to show the players you're fair dinkum about the contest," he said.

KG even wondered if a trip back to the reserves was something that Walker needed, although he admitted his comments could anger Crows fans.

"I just wonder also whether it's time Tex went back to the SANFL and got things right," KG said.

"I'll probably get shot for saying what I've said!"