Dan Henderson has former UFC light heavyweight champion Rashad Evans to worry about in Saturday’s UFC 161 main event in Winnipeg, Manitoba, Canada. He’s no stranger to high pressure fights and pulling off impressive finishes. One of the more memorable moments in his career, however, was Henderson’s upset of Wanderlei Silva at Pride 33 to win the promotion’s middleweight championship. As we near UFC 161, check out Dan Henderson’s knockout upset of then-Pride champion Wanderlei Silva at Pride 33…