Grizzlies legend Zach Randolph is confident Ja Morant will bounce back from his off-court issues ... telling TMZ Sports he's been sharing advice with the young NBA star following his 25-game suspension.
Memphis will be without its face of the franchise for the first chunk of the upcoming season as a result of his second gun-related social media post that surfaced back in May ... but Z-Bo says it's just a bump in the road for the two-time All-Star -- revealing what he's been telling Morant in their conversations.
"Man, I just tell him, Ja, you're lil bro," Randolph said at LAX. "We all been through some stuff. If it was social media like it was when I was playing, I'd be in some stuff, too."
"You gon' be all right," he added. "You just go through growing pains, and you be resilient and you bounce back."
"That's what he is. He'll bounce back."
24-year-old Ja initially faced criticism for flashing a gun at a strip club back in March ... resulting in an 8-game ban.
Despite his claims -- and alleged video proof -- that the weapon shown in the second video was actually a lighter, the league elected to hand down his current lengthy punishment.
We also talked to Z-Bo about LeBron James recruiting the NBA's biggest American stars for the 2024 Olympic Games ... as well as his successful venture into the Memphis rap scene.