A universal theme among tennis players is the challenge of playing left-handed players. There's quite a few famous ones out there including Rafael Nadal and Martina Navratilova, who's got some advice for you. 

“Believe it or not I had a hard time playing against left-handers too,” Navratilova said.

The 18-time Grand Slam champion gives three simple changes to your strategy to help you play against a lefty, with a golden rule at the end: don't overthink it.