World No. 4 Alexander Zverev, who stunned world number one Novak Djokovic in straight sets to win the season-ending ATP Finals will play World Tennis Challenge alongside with Shanghai Masters runner-up Borna Coric, two-time Grand Slam champion Victoria Azarenka and former World No.9 CoCo Vandeweghe.
Zverev and Azarenka will join 1988 French Open runner-up Henri Leconte in Team Leconte, according to the agreement they have signed.
"I'm thrilled to join the field for the World Tennis Challenge in January,” Azarenka said, per the tournament's website.
"This will be my first time visiting Adelaide so I am looking forward to exploring the city and meeting all of the tennis fans too."