The best fighters in sport don't fight because they love the glory of the win. They fight because of the devastation that comes with the loss. They fight out of darkness and despair, culminating in desperation. Pride fuels them. They know there are no style points, only wins. It's in the battle where the elite fighters find their best.

Angelique Kerber is the pugilist of women's tennis. Sure, there are players who land bigger punches or compete with indefatigable resolve, but when it comes to being a pure back-alley brawler, Kerber's aggressive counter-punching style stands alone. Let your guard down for a second and she will land a crushing blow. Knock her down and she will get back up again. Throw your jabs, your haymakers, your kitchen sinks, give it all you've got. Kerber will absorb it all and make you pay.