Creed took a hit to the low back during practice and felt a…

Creed took a hit to the low back during practice and felt a cramping like pain. He was able to finish practice but comes to the athletic training room after complaining of pain on the right side of this back. Your evaluation reveals the following: no deformity tissues feel tight on palpation mild pain with foward flexion and extension mild pain with L side bending 5 out of 5 for all manual muscle tests Which of the following is most likely the correct diagnosis?