South Korean tennis player Hong Seong-Chan is set to take a break from the sport to join the military. The athlete will take a break from Tennis and join the military at the end of the year. But is it mandatory for athletes to join the military in South Korea? Did super stars like Park Ji-Sung or Son Heung-min have to do so too? And if yes, why is it mandatory for athletes to join military? and what does this mean for Hong Seong-Chan? Rupha Ramani brings you more.