Magnus Norman ends successful partnership with Stan Wawrinka

Magnus Norman ended his four-year spell as Stan Wawrinka's coach on Wednesday, after a partnership that saw the Swiss win three Grand Slam titles.

Swede Norman joined up with Wawrinka, who is sitting out the rest of this season with a knee injury, in April 2013 and helped him become one of the top players in the men's game, but has decided to take a break from full-time coaching.

"After much thought I have decided to dedicate my future to my family,” said Norman. “With two young kids at home, now is the right time for me to be with them. I could not have had a better player to work with and this has been one of the most difficult decisions I have ever had to make."

Norman began to coach Wawrinka in April 2013, when Wawrinka was No. 17 in the Emirates ATP Rankings. The former World No. 2 from Sweden helped Wawrinka to a 12-5 record in finals, including the 2014 Australian Open (d. Nadal), 2015 Roland Garros (d. Djokovic) and 2016 US Open (d. Djokovic) crown, plus one ATP World Tour Masters 1000 title at the Monte-Carlo Rolex Masters (d. Federer).

Wawrinka said, "I would like to thank Magnus for the amazing four years we had together. I will always be grateful for the work and the time he spent on me to make me improve and become a three-time Grand Slam Champion. He was not only part of my team but also part of the family.

The Swiss was ranked third in the world in July, but has slipped to ninth following his injury layoff.