Not only has Michael Voss dismissed criticism of Jonathan Brown, the Brisbane Lions coach wants his side to replicate their injured captain's courage against North Melbourne on Saturday.

Voss on Friday shared Brown's disappointment over the likes of ex-mentor Leigh Matthews and premiership coach Paul Roos questioning the Lions skipper's playing style after last weekend's head knock.

Matthews was perhaps the most vocal, saying former charge Brown should stamp out his "crazy courage" or he would let his team down.

Brown used his News Limited column on Friday to defend his approach, saying he had been "surprised and disappointed by the hysteria" following his season-ending injury.

Voss used a press conference on Friday to throw his support behind Brown, who is recovering from his second facial operation this season.

"I have been a bit disillusioned too, to be honest," Voss said of the criticism.

"But that's what they are there to do - they are there to commentate and give views.

"For us we know what we are trying to achieve and he has the support from us regardless of what was said."

Brown clearly took offence to being criticised for running with his back to an oncoming pack against Geelong last Sunday, when he suffered his second serious injury of the season.

"It's the first time in my life I've been carried from the ground with concussion and suddenly I'm meant to be reckless, crazy, dangerous and irresponsible for letting my team down," he wrote.

"I try to keep a pretty thick skin about this sort of thing but I reckon this is a bit much."

Voss said he admired Brown's courage and wanted his side to show similar commitment against the Kangaroos at Etihad Stadium on Saturday.

"Brownie unfortunately is not available (but) we've got a group of people who we want to have the same sort of courage, put their body on the line, and (show the) same selflessness as a team," he said.

"If we can replicate that in every contest then that's what we are after.

"If we can get that inspiration from each other throughout the game in Melbourne then that would be a fantastic outcome for us."

Voss said Brown had no reason to tone down his approach despite his skipper again facing a lengthy sideline stint.

"The acts he does on the field, 99 out of 100 are fantastic. He has one now that they are talking about," he said.

"You can focus on the one or the 99 - for me it is the 99."

The lowly Lions (3-13 record, 15th) received a shot in the arm ahead of their clash with North Melbourne (7-9, 11th) by re-signing five young guns including Daniel Rich and Matthew Leuenberger.

"I am pleased they have been able to stand up, put pen to paper and say `this is where I want to be' - I think it is a fantastic statement," Voss said.

"Guys are investing in what has been created here."

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