Perhaps looking to channel their inner Samson, some sports players have let their beards and locks grow shaggy for a supernaturally hairy edge on their opponents. The practice was first noticed in the NHL, but has since spread to athletes from across all other sports. Most notably — especially for a sport that prides itself on its clean-cut image — tennis great Bjorn Borg would grow out his beard for Wimbledon. The tradition resulted in five consecutive tournament wins from 1976-1980. Perhaps the World Anti-Doping Agency should add Rogaine to its list of performance-enhancing drugs.