At the end of 2015, Roger Federer split with coach Stefan Edberg after two years working together. The Swiss said of the Swedish coach -- himself a six-time major winner -- in a statement: "You were an invaluable coach for two years & will be my idol for life."<br />
At the end of 2015, Roger Federer split with coach Stefan Edberg after two years working together. The Swiss said of the Swedish coach -- himself a six-time major winner -- in a statement: "You were an invaluable coach for two years & will be my idol for life."
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Federer won 11 ATP titles in the two years he worked with Edberg, and lost three grand slam finals -- all to Novak Djokovic. Edberg said he had only initially intended to work with Federer for one year before agreeing to extend that through to the end of 2015.
Federer won 11 ATP titles in the two years he worked with Edberg, and lost three grand slam finals -- all to Novak Djokovic. Edberg said he had only initially intended to work with Federer for one year before agreeing to extend that through to the end of 2015.
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The 17-time grand slam champion has now hired his former on-court rival Ivan Ljubicic, who had been coaching top-10 player Milos Raonic of Canada.
The 17-time grand slam champion has now hired his former on-court rival Ivan Ljubicic, who had been coaching top-10 player Milos Raonic of Canada.
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Federer said ahead of the 2016 Australian Open, his first grand slam with Ljubicic: "I always believe there's new things you can learn, but there's always sometimes a way of staying motivated, staying hungry. Someone like Ivan can also help do that."
Federer said ahead of the 2016 Australian Open, his first grand slam with Ljubicic: "I always believe there's new things you can learn, but there's always sometimes a way of staying motivated, staying hungry. Someone like Ivan can also help do that."
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Ljubicic is one of many former stars coaching today's biggest players. Boris Becker has been working with world No. 1 Djokovic since December 2013, in which time the Serbian has won four grand slam titles to take his overall tally to 10.
Ljubicic is one of many former stars coaching today's biggest players. Boris Becker has been working with world No. 1 Djokovic since December 2013, in which time the Serbian has won four grand slam titles to take his overall tally to 10.
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German Becker won six major titles in his playing career, including the 1985 Wimbledon title when he was just 17 years and 227 days old -- a record at the time.
German Becker won six major titles in his playing career, including the 1985 Wimbledon title when he was just 17 years and 227 days old -- a record at the time.
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Eight-time grand slam champion Ivan Lendl helped Britain's Andy Murray win his first two major titles, as well as an Olympic gold medal.
Eight-time grand slam champion Ivan Lendl helped Britain's Andy Murray win his first two major titles, as well as an Olympic gold medal.
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Since splitting with Lendl in March 2014, Murray has teamed up with former women's No. 1 Amelie Mauresmo.
Since splitting with Lendl in March 2014, Murray has teamed up with former women's No. 1 Amelie Mauresmo.
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Former Wimbledon champion Goran Ivanisevic (left) is something of a veteran on the coaching circuit having teamed up with fellow Croatian Marin Cilic in 2010.
Former Wimbledon champion Goran Ivanisevic (left) is something of a veteran on the coaching circuit having teamed up with fellow Croatian Marin Cilic in 2010.
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Cilic won his first grand slam title at the 2014 U.S. Open, beating another final debutant Kei Nishikori.
Cilic won his first grand slam title at the 2014 U.S. Open, beating another final debutant Kei Nishikori.
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Michael Chang (right), who stunned Edberg in the 1989 French Open final as a teenager, took up a coaching role with rising Japanese star Nishikori in December 2013. Nishikori made it to the semifinals of the season-ending ATP World Tour Finals in 2014, and reached a career-high fourth in the rankings in March this year.
Michael Chang (right), who stunned Edberg in the 1989 French Open final as a teenager, took up a coaching role with rising Japanese star Nishikori in December 2013. Nishikori made it to the semifinals of the season-ending ATP World Tour Finals in 2014, and reached a career-high fourth in the rankings in March this year.
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Martina Navratilova, who holds the Open Era record for total singles and doubles titles in the men's and women's game, coached Agnieszka Radwanska for a few months before they split in April 2015. The Pole won the season-ending WTA Finals in Singapore in November -- her biggest career title to date.
Martina Navratilova, who holds the Open Era record for total singles and doubles titles in the men's and women's game, coached Agnieszka Radwanska for a few months before they split in April 2015. The Pole won the season-ending WTA Finals in Singapore in November -- her biggest career title to date.
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