Madison Keys is feeling the heat Down Under as she defends her Australian Open crown. Tennis legend Martina Navratilova broke down how the real battle for Keys isn’t just on the court, but handling the emotional pressure and spotlight that comes with being the hunted. So far, Keys is showing poise, but with every round, the mental game gets tougher. Can she keep her cool against Krueger in round two? #Sports #Tennis #AustralianOpen