"You can't change the way Joel plays," Cats assistant coach Dale Amos said on Tuesday. "That's the way he is.
"The way they adjudicate the game, in terms of contact to players, is as good as it's ever been. It's much safer than it ever was.
"So we trust that the game will enable guys to play the way they are, because we all admire Joel.
"He's the captain of our footy club for a reason. He leads by example, and I think everybody admires the way he plays."
Former Geelong, Sydney Swans and Carlton star Greg Williams, who was recently diagnosed with a degenerative brain condition, has expressed concern about Selwood's welfare.
Williams told News Ltd that Selwood "gets knocked out a couple of times a year and gets stunned that many times that the club has to protect him because he can't protect himself".
Williams added: "He is a champion player and courageous, but he is too courageous for his own good.
"If he keeps getting concussed, it's a huge issue for him in life and they have do to something about it."
But Amos is adamant that the vast majority of AFL players, including Selwood, understand the dangers associated with repeated head-knocks.
"What was once seen to be brave and macho is quite different now," Amos said.
"Everybody in the industry is much more educated, and the players are no different.
"We expect (responsible communication) from them on a daily basis.
"They report how they're feeling, and their consultations with the medical staff or the physios are quite extensive, so I think players are quite in-tune with how they feel.
"They understand their own body quite well, in terms of their own treatment and how they're managed."
In response to the mounting evidence that head-knocks can lead to degenerative brain problems, the AFL has strengthened its concussion rules in recent years.
"You just can't cheat the system anymore with those sorts of things," Amos said.
"The tests are in place, and a lot of the time the medical staff go above and beyond what is required (by the rules) to tick a player off, ensuring players are in a fit state to perform.
"I think clubs are heavily invested in players' welfare and making sure that that comes first in all situations, whether it's a head injury or any other injury.
"There's no compromise and there's no short cuts with that sort of stuff.
"So I think the (Geelong) players are really confident in the (club's) medical staff, and I think the medical staff ensure that the confidence remains because of the way they go about it."
Meanwhile, Cats vice-captain Jimmy Bartel said baseline testing for concussion needs to become more advanced.
Speaking with Fairfax, Bartel said looking to overseas sports will be of benefit to the AFL.
‘’We have spoken about it. The original baseline testing maybe needs to become more advanced,'' Bartel said.
''It's not so much how you deal with it when someone has concussion, it's how you set the initial baseline. It's been the flipping cards, reaction time on the computer…
‘’Ice hockey in America is looking into better baseline testing for concussion. Some players just lay down during the baseline testing.''???
Bartel acknowledges that AFL players are more likely to encounter head injuries compared to other sports, however he does believe that our game doesn't promote or relay on head on tactics.
‘’As a game, we do suffer a lot of concussions compared to other contact sports but I don't think we have that physical head-on-head action,’’ Bartel explained.
''The NFL rules have changed where they have stopped the head-on tackle where players actually use their head as a battering ram. We don't actually have that.
''I am very confident at Geelong, because we have good staff, medical teams that take a very cautious approach. I am pretty happy with that.
''As players, we know the risks. We wouldn't stop playing because of it.''
