'We don't share girlfriends!': Inside the lives of badminton's sibling partnerships

At the BWF World Championships in Delhi, sibling partnerships offer more than a shared surname.

Scotland’s identical Grimley twins have spent two decades learning each other’s game, while France’s Popov brothers see doubles as an escape from the pressures of singles.

Czech siblings Ondrej and Jiri Kral, meanwhile, embrace the comfort, and occasional friction, of sharing life and badminton.