Former tennis player Mats Wilander has said Novak Djokovic's surprise decision to bring Andy Murray into his box for the Australian Open is an "excellent move".

Nicolas Mahut has warned Andy Murray that he could be subject to Novak Djokovic's "violent" outbursts when they begin working together.

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,