Andy Murray has split from his coach Ivan Lendl for the second time.
The Briton won three Grand Slam titles and two Olympic Golds over two separate periods with the Czech, as well as securing world No 1 last year.
On his official website, Murray said the decision was “mutual”.
He said: “I’m thankful to Ivan for all his help and guidance over the years, we’ve had great success and learned a lot as a team.
“My focus now is on getting ready for Australia with the team I have in place and getting back to competing.”
Lendl is a former world number one and eight-time Grand Slam champion.
He will continue to work with USTA Player Development and said: “I wish Andy well going forward.
“We had a great run and a lot of fun.”
Murray worked with Lendl from 2012 to 2014 and returned to him in June last year after splitting from Amelie Mauresmo shortly before the French Open the previous month.
At the time, he said that Lendl was “single-minded and knows what it takes to win the big events”.
Murray will continue to build his fitness with a training block in Miami before heading to Australia in December ahead of Brisbane and the Australian Open.