Berry overcame several physical ailments during his football career, a fact he became famous for, but one that according to Berry was often exaggerated by the media. He was skinny and injury prone, such that when his college teammates saw him for the first time they sarcastically dubbed him, "Jack Armstrong, the All-American Boy". Reportedly, because one leg was shorter than the other, Berry had to wear padding inside his shoe in order to walk properly. However, according to Berry, this was not entirely true. In actuality, bruised nerves near the sacroiliac joint occasionally caused misalignment in his back, which in turn affected his legs and caused one to become slightly shorter; it was not a permanent condition. To alleviate this, he wore a back brace for 13 years in the NFL. That he required specialized shoes was a myth, which Berry says was perpetuated by an overzealous information director with the Colts when Berry tried to compensate for his condition by putting something in his shoe during training camp.