McEnroe calls halt to coaching Raonic

US tennis legend John McEnroe called a halt to his coaching work with Milos Raonic, claiming "it will make life easier" despite helping the Canadian to the Wimbledon final last month. McEnroe made his announcement just two days out from the start of the US Open, the season's final Grand Slam event where world number six Raonic is ranked as a potential title winner. Raonic, defeated by Andy Murray in the Wimbledon final, only started working with McEnroe for the grass court season but the two men