A Knifley man was injured Sunday afternoon in motorcycle collision,  Adair County Sheriff Josh Brockman told 99.9 The Big Dawg the accident occurred 9 miles east of Columbia, upon arrival sheriff Brockman found that Mathew Lee age 47 of Knifley was traveling east on  Allan School House Road on his 2006 Harley Davidson when he failed to negotiate a curve and left the roadway, Lee wass treated at the  scene by Adair County EMS and transported to TJ Health of Columbia for additional treatment, the Sunday motorcycle mishap was investigated by Sheriff Josh Brockman.