Marlen Esparza is no stranger to adversity. She has had her share of difficult fights in the ring. When she is getting punched over and over, she questions how committed she is to the sport. It's in those moments that Esparza realizes her love for the sport, and does whatever it takes to persevere and win the fight. That type of mentality is what lead her to a bronze medal at the London 2012 Olympic Games.