The 25-year-old Italian currently ranked world No.1 has been out injured since winning Wimbledon in July.
He also looked set to miss the Riyadh event, originally scheduled for October which organisers hope will go ahead on December 27th-30th.
Sinner shared a poster for the event Monday on his Instagram account featuring his image and the event name and dates but without further comment.
Sinner's 94 percent winning record in 2026 is the best of his career, even beating his figures from the previous two seasons in each of which he won two Grand Slams and the ATP Finals.
The tournament is expected to feature 24-time major champion Novak Djokovic, world No.2 Alexander Zverev, winner of the French Open and the US Open this season, and possibly seven-time major winner Carlos Alcaraz.
The 2027 Dakar Rally is the latest sporting event scheduled to take place in Saudi Arabia to be cancelled, postponed or relocated due to Houthi attacks on the country and the wider US-Iran war that erupted in February.