Francis Ngannou will carry his son's name with him forever ... the MMA superstar just revealed a tattoo tribute to Kobe months after his death.
The new ink was spotted on Friday at Ngannou's weigh-in for his PFL Super Fight against Renan Ferreira ... which goes down this weekend in Saudi Arabia.
The two bumped heads during the event ... but after the tension between the fighters calmed down, Ngannou flexed for the camera with his arms raised, displaying the tattoo on his left bicep.