One wouldn't think that there's too much in common with 2014 Boston Marathon champion Meb Keflezighi and slain rapper Nipsey Hussle, but the two shared a unique bond after Meb's older brother, Merhawi, and Hussle's father struck up a friendship.  

Every sport makes different demands and physiques are carved and cut and chiseled in distinct ways, but success at each often hinges on conditioning. What happens when you level the playing field and compare disparate sports?