The 2023 Nitto ATP Finals continue on Tuesday in Turin with a pair of Green Group matches. The first major upset of the year-end event happened on Monday when Alexander Zverev took down World No. 2 Carlos Alcaraz as a +175 underdog in a three-set thriller. Tuesday's schedule kicks off when Holger Rune (-160) faces Stefanos Tsitsipas, while top-ranked Novak Djokovic (-190) faces Jannik Sinner. Djokovic is the -220 favorite to win the Green Group, sitting ahead of Sinner (+160), Rune (22-1) and Tsitsipas (50-1). 

Before you make any tennis picks for the ATP Finals matches, you need to see who tennis expert Blake Von Hagen is backing.

Von Hagen has followed tennis closely for years, keeping an eye on young players before they turn into stars. His dedication to the sport allows him to find value on the Challenger Tour and the ATP Tour alike. 

Von Hagen routinely attends ATP events, including at the Challenger level. He keeps up with injuries, form and line movement to identify the best bets of the day. His research allowed him to nail Carlos Alcaraz as a 22-1 longshot to win the 2022 US Open, jumping on board before the market adjusted.

Now, Von Hagen has released his picks for the ATP Finals. You ABSOLUTELY need to see what they are before entering any tennis picks!

What are today's best tennis bets? ... Join SportsLine now to see Von Hagen's top predictions and analysis, all from the tennis expert who nailed Carlos Alcaraz as a 22-1 longshot at the 2022 US Open!