Tank Abbott was unable to pass the medical exams issued by the Arizona Boxing & MMA Commission and has been pulled from a bout against Dan Severn this Sunday at UR Fight I. Abbott was originally a replacement for Ken Shamrock, who pulled out of the fight after a loss to Royce Gracie at Bellator 149. UR Fight officials are seeking a replacement for Abbott, but nothing has been announced as of this writing. UR Fight I takes place on March 20th from the Celebrity Theater in Phoenix, Arizona with Dan Severn headlining the MMA portion of the event.