How a ballboy became a legend: Roger Federer's career highlights - video

Roger Federer has announcedin a social media posthe will retire next week at the age of 41 after the Laver Cup in London, marking the end of one of the greatest sporting careers. Here are some of the most important moments in the professional career of the 20-time grand slam champion Tennis great Roger Federer retires: his career - in pictures Roger Federer announces retirement from tennis after stellar career