How tennis great Steffi Graf got bitten by pickleball’s ‘fun factor’

Nerves were rarely an issue for Steffi Graf during her decorated tennis career, even though she found herself playing on the sport’s biggest stages time and again.

​ Nerves were rarely an issue for Steffi Graf during her decorated tennis career, even though she found herself playing on the sport’s biggest stages time and again. Read More Breaking News, Latest News and Videos | CNN