The inaugural United Cup brings together the best ATP Tour and Hologic WTA Tour players in an 18-country teams' event played over 11 days across three Australian cities - Brisbane, Perth and Sydney.
Swiatek, who was named Newcomer of the Year in 2020, had an exceptional season in 2022, leading the way in terms of finals appearances, awards won and matches won. She was crowned winner at eight tournaments, including six in a row and a 37-match winning streak.
The top 16 nations' entries have been revealed, with Team Greece, comprised of world No 3 Stefanos Tsitsipas and world No 6 Maria Sakkari, being seeded first.
The Kudermetova-Mertens pair came back from 7-2 down in the match-tiebreak to defeat the duo of Barbora Krejcikova and Katerina Siniakova 6-2, 4-6, [11-9].
"Halep, who has a WTA ranking of 9, provided a sample whilst competing at the US Open in August 2022. The sample was split into A and B samples and the subsequent analysis found that the A sample contained FG-4592 (Roxadustat), which is a prohibited substance listed in the 2022 World Anti