It's in the hits Alexander Brimson is prepared to take that makes Gold Coast coach Garth Brennan know his young NRL five-eighth is going to be something special.
Brimson was taken from the field with a concussion after his head knock caused a three-minute stoppage to play in Saturday's 30-24 loss to Newcastle.
He didn't return but was later sitting up in the sheds after his team squandered a 24-10 lead with 25 minutes to play, with him off the field.
Brimson had earlier been one of the Titans' best as he provided the last pass for a Phillip Sami try before he was injured trying to stop a hard-running Lachlan Fitzgibbon close to the line.
"AJ showed some really good signs, he set up a really good try with that pass to Sami," Titans coach Garth Brennan told reporters after the match.
"He's a little bit knocked about. That tackle was enormous. That's the sort of courage that kid's go.
"He's still only (19). He put his body on the line like he does week in week out and that's why he is going to be something special"
Brimson's defensive effort was systematic of what he's produced regularly this year, despite the match being his fourth game in 14 days after also playing for Queensland under-20s last week.
He twice stopped a rampaging Blake Ferguson in his tracks last week against the Sydney Roosters.
He's also managed to keep Kane Elgey out of the Titans' 17 since his debut in round 10, having not missed a game since then while Elgey appears likely to head elsewhere at the end of the year.
Contracted until the end of 2019, Brimson is part of a group of youngsters - including 18-year-old forward Moeaki Fotuaika - that has Brennan seeing a light at the club for the future in an otherwise dull season for the Titans.
"He's not afraid to run the ball and he's not afraid to put his body on the line when the team needs him to," Brennan said of Brimson.
"And he did that today when the team needed him to.
"The boys need to be better at backing him up on the end of it. That's what annoys me more.
"He was willing to put his body on the line and the boys need to do that back him up."