There are certain obvious physical advantages that explain why men tend to excel at sports more naturally than women. But don't call it a weakness, women have their own set of physical and psychological advantages. Women can shine at sports and you better believe women can fight!
Boxing, with it’s speed and precision, may not be the best choice if a woman wants to challenge a man to a fight. Men tend to have a slight reaction time advantage over women and that, coupled with men’s typically longer reach (when comparing fighters of equal height) could allow men a field day of counter punching. Plus men’s naturally thicker muscle mass provides greater protection of vital organs from attack.