 Complete the following phrase:  By the 1951 season, Motley started to feel the physical effects of his hard-hitting, up-the-middle running style. He suffered a knee injury in training camp, and he was getting older; by the time the season was in full swing, he was 31. Motley only ran for 273 yards and one touchdown that year, an uncharacteristically low total. Despite Motleys troubles, the Browns made the 