Stan Wawrinka, who announced last month that this year would be his last on the ATP tour, rallied to beat Arthur Rinderknech 5-7, 7-6 (5), 7-6 (5) at the United Cup.
Naomi Osaka is feeling under the weather at the United Cup but is optimistic she is nearly finished with the illness ahead of the Australian Open later this month.
Aryna Sabalenka is backing herself to come out on top in her 'Battle of the Sexes' exhibition match against Nick Kyrgios by embracing the unknown in Dubai.
Stan Wawrinka, a three-time major winner and Olympic gold medalist in doubles at the 2008 Beijing Games, says 2026 will be final year of his professional playing career.