Daniil Medvedev defeated Russian Karen Khachanov 6-3, 3-6, 6-3 at the Vienna Open to set up a mouthwatering semi-final clash with Stefanos Tsitsipas.
Former world number one Simona Halep is taking her case to the Court of Arbitration for Sport, seeking to reverse a four-year ban imposed for her anti-doping rule violations.