Sean Strickland has a habit of going all out in his sparring sessions. Be it a former K1 kickboxing world champion, or a Navy SEAL, ‘Tarzan’ has often put a beat down while sparring.

Brian Mazique has covered combat sports and video games since 2011. SYDNEY, AUSTRALIA - SEPTEMBER 10: (L-R) Sean Strickland punches Israel Adesanya of Nigeria in the ... [+] UFC middleweight ...