Scott Russell’s return to racing hinges on the healing of nerve damage in his left leg and arm. In a Bike Week TV show interview aired April 3, Russell revealed that he currently does not have any up-and-down movement in his left ankle and that he also has nerve-damage-related problems in his left hand.

If the nerve damage does not heal, and if full mobility in his ankle and hand don’t return, Russell said, his career as a motorcycle racer is over. Russell added that at age 36 he feels he has had a full career.

Russell was injured when he stalled his HMC Ducati on the grid during a restart of the March 11 Daytona 200, and was hit by other riders.