Vin Diesel has moved from burying the hatchet with Fast and Furious co-star and one-time cinematic rival Dwayne Johnson to championing the Hobbs actor for his latest hard-hitting performance as MMA star Mark Kerr in The Smashing Machine.
On Instagram, Vin Diesel revealed a strange quirk in his relationship with Johnson's latest role: he once became fast friends with Mark Kerr, who helped train him for action film XXX.
