Jack Greener was sparring with his instructor in 2018 when his cervical vertebrae was crushed Vincero Collective/YouTube Jack Greener was left paralyzed from the neck down by his jiu-jitsu ...

Jack Greener suffered the life-changing spinal cord injury at Del Mar Jiu-Jitsu Club in 2018 when he sought out the help of instructor Francisco Iturralde, a second-degree black belt also known as ...

Excitement at getting back on the mat and competing in the largest and most prestigious event on the global jiu-jitsu calendar is running high amongst international stars as they get ready to put the ...