15. Adrian Peterson – All Day

The story behind this nickname is as the name implies. Adrian earned this nickname right from his childhood. As a matter of fact, his father gave him the nickname. According to his father, Adrian was able to run all day as a kid without getting tired or having the need to catch his breath. Thankfully, his father didn’t stop this activity or he wouldn’t have made it into the NFL. Adrian’s team mates usually speak of his tireless sprinting abilities. Adrian has other nicknames such as purple Jesus. He’s also fondly called AP although I don’t see how an acronym can be a nickname.

16. Karl Malone – The Mailman

Get close when he’s trying to dunk and tomorrow you’re seeing the dentist for an implant. When his team sends him a mail, he definitely delivers into that hoop. There are so many dunkers so to be referred to as ‘The Mailman’, you must be doing something right. Moreover, of all nicknames in the world of sports, it’s really odd to have such a nickname.