The 24-time major champion begins his quest for 100 titles at Brisbane, starting December 29.
Carlos Alcaraz, Ben Shelton, Emma Navarro and Jessica Pegula headline the Madison Square Garden event.
"Sinner and Alcaraz have established themselves as the two best players in the world, not to forget Zverev," Novak Djokovic said.
"Nick Kyrgios needs to give it a rest. Sinner has been found not guilty, right?" Tennis Channel analyst Mark Petchey told Betway.
The Grand Slam king says that his high profile pairing came together quickly after the initial phone call.
The Aussie shared the news on social media over the weekend.
The 24-year-old announced the news on social media.
