Mikael Ymer was banned from tennis for 18 months for an anti-doping violation in July after missing three drug tests and now he retired.
Mikael Ymer set to be sidelined until 2025 "despite never having used nor been accused of using banned substances".
Mikael Ymer lost his prize money, fined and docked his ranking points.
Mikael Ymer could have little argument with his disqualification.
Plenty of room for improvement for Andy Murray after his disappointing defeat in Washington DC.
Stefanos Tsitsipas wants to up his game in the second round of the Australian Open.