Wimbledon 2019: Rafael Nadal reveals his biggest Roger Federer regret ahead of semifinal clash

Rafael Nadal gears up to resume his historic Wimbledon rivalry with Roger Federer when they play each other in the semifinal. Ahead of the match, he took a moment to reflect on their battles over the years. The Spaniard will face off against his greatest rival after 11 years at Wimbledon, their last encounter being …