Federer is back in Wimbledon's Royal Box as he watches Djokovic's match

Roger Federer is back at Wimbledon. The eight-time champion at the All England Club was sitting in the Royal Box to watch Monday's fourth-round matches on Centre Court, starting with his former rival Novak Djokovic playing Alex de Minaur. Federer was greeted by a loud round of applause as he entered the box together with his wife Mirka.