Former eight-time Grand Slam champion in doubles Nenad Zimonjic underlines that Novak Djokovic is "a smart guy" and therefore knows extremely well why he added Andy Murray to his coaching staff for the Australian Open.

Novak Djokovic ’s decision to hire Andy Murray has been branded an “act of war”. The former rivals shocked the tennis world over the weekend, announcing that the newly-retired Brit would coach the 24-time Grand Slam champion during the off-season and Australian Open.

He also reflected on the new partnership between Djokovic and Murray: “He can contribute on the emotional side, on the mental side and, above all, bring him a lot in the game. Although Andy has no coaching experience, he has complete knowledge of Novak, he has known him for more than 20 years and that is a big advantage.”

It’s time for one of my toughest opponents to step into my corner. Welcome aboard, coach Andy Murray,” the 24-time men’s Grand Slam singles champ posted on social media Saturday.

By Charlie Eccleshare, Callum Davis and Matthew Futterman Novak Djokovic has appointed his former rival and three-time Grand Slam champion Andy Murray as his new coach. Murray, 37, called time on his illustrious 19-year career after the Paris Olympics in August but is returning to tennis to help the 24-time Grand Slam winner’s preparations for the Australian Open,

Andy Murray is going to team up with former rival Novak Djokovic as his coach for the Australian Open; Murray retired from tennis after the Paris Olympics in the summer; Djokovic will be looking for a

Recently retired Andy Murray will team up with Novak Djokovic, working with him as a coach through the Australian Open in January.