Darren Waller ain't scared of relapsing when he has to move to Las Vegas after the Raiders bolt from Oakland ... in fact, he tells TMZ Sports he's gunning to be a sobriety symbol in Sin City.
The tight end's battle with substance abuse is well known ... the 27-year-old nearly lost his NFL career before it really even began because of issues with opiates and cocaine.
But, Waller's been on the straight and narrow for over two years now ... and he tells us he ain't concerned one bit about how a permanent move to Vegas might change that.