These predictions are aimed at traders rather than punters. When assessing a match, I initially look for 2 things. Who do I think will win and how competitive will the other player be?
Use them for straight bets if you wish but please bear in mind that is not what they are intended for.

Djokovic in 4 or 5 sets: Djokovic played an amazing match to beat Alcaraz. If he hits that level tonight, Zverev has a problem. Zverev was a little passive in his win over Tommy Paul. I expect him to be more aggressive in this match.

Sinner in 3 sets: Really easy win for Sinner over De Minaur. He won his last 4 matches with Shelton in straight sets. If Sinner’s level drops, Shelton could take a set.