Wimbledon 2019: Serena Williams’ coach warns Roger Federer against getting ‘killed’ in final

Roger Federer is set to take on Novak Djokovic in Wimbledon 2019 final. The duo is scheduled to lock horns at the Centre Court shortly where Federer will look to win his 9th Wimbledon title against the defending champion.  Federer defeated Rafael Nadal in the quarter-finals to set up his 2015 Wimbledon final rematch against …