Former world No. 1 who retired at 29 amid scandal, takes aim at Djokovic, Federer and Nadal

Yevgeny Kafelnikov reached the top of the ATP rankings in 1999 but retired at 29 amid a scandal. Some years ago, he criticized Novak Djokovic, Roger Federer, and Rafael Nadal.

• The top 25 highest-paid tennis players of all time: The wealthiest stars ranked
• Former world No. 1 who retired at 28 without winning any Grand Slam, criticized Djokovic, Federer, and Nadal