With Dominic Thiem retired, who is the most talented 'One Slam Wonder' still active in tennis?
With his career now concluded, there are several candidates to replace Dominic Thiem as the most talented One Slam Wonder still active on the tennis circuit. There are 2014 US Open champion Marin Cilic and 2018 Australian Open champion Caroline Wozniacki, who are now past their prime but still showing the world, from time to time, their mettle.