By Zach Koons After an emotional doubles match with Roger Federer, the 22-time Grand Slam champion opted out of the remainder of the team event. Rafael Nadal withdrew from the remainder of the Laver Cup on Saturday morning for “personal reasons,” his spokesman confirmed to ESPN. The official decision comes after Nadal alluded to his withdrawal following Friday night’s emotional doubles match alongside Roger Federer, in what was the final match of Federer’s career. The duo lost in a tiebreak to Jack Sock and Frances Tiafoe, but delivered a number of memorable moments throughout the evening, inc…