Andy Murray is set to link up once again with ex-coach Dani Vallverdu for the Rotterdam Open

Andy Murray is set to bring in his former coach Dani Vallverdu for the Rotterdam Open as the Briton continues his battle to rediscover his old self. Murray suffered a disappointing second-round exit from the Australian Open to Japan's Taro Daniel in January, and his noises post-match suggested he is no nearer to finding a consistent formula to climb up the world rankings after his well-documented injury problems. Ad/> So enlisting the help of Venezuelan Vallverdu — so key to Murray's Grand Slam successes at the 2012 US Open and Wimbledon 2013 — seems like a move designed to do just that.

TennisDel Potro suggests retirement from professional tennis after Argentina Open15 HOURS AGO Because of his continued low ranking, Murray is reliant on wildcards to be able to enter the ATP Tour's bigger events, and he was granted another by the Rotterdam tournament. It's a critical period for the 34-year-old, who will find out in the coming months whether he can challenge again at the sharp end of the men's game, as he admitted in Melbourne. «When you know you've not got many years left it is frustrating,» Murray said.

/> «After a good win in the first round I created an opportunity for myself. It was probably a match I should win and I didn't take that chance. »I was not able to sustain a good enough level for long enough, whereas he was solid throughout.

Raducanu: Zoning out of criticism helps me Djokovic: I'll tell my Australian Open story in the next 10 days «I'm obviously very disappointed with that. /> »Making second round of slams is not something I find particularly motivating. I want to be doing better than that.