World number one Jannik Sinner will seek to reach his fourth Grand Slam of a dominant season when he takes on Felix Auger-Aliassime in the semi-final of the 2025 US Open.Sinner booked his place in the last four with a comfortable three set victory over Lorenzo Musetti. Auger-Aliassime required four sets to see off Alex de Minaur. The winner will face either Carlos Alcaraz or Novak Djokovic in Sunday’s final. Quick Jannik Sinner vs Felix Auger-Aliassime betting tipsJannik Sinner to win 3-0 – 4/9 at SBKUnder 0.5 tie breaks – 4/6 at BetMGMUnder 29.5 games in the match – 6/5 BetfredJannik Sinner vs Felix Auger-Aliassime oddsIt’s fair to say that the bookmakers don’t expect this to be much of a competitive match. Sinner is 1/40 to win with Betfred, with Felix Auger-Aliassime at a top price of 16/1 with SBK. To put those match odds into perspective, Carlos Alcaraz is the betting favourite in the other semi-final at 1/4, with Novak Djokovic at 11/4. That’s a huge difference and reflects the task facing the 25th seed from Canada. The latest Jannik Sinner vs Felix Auger-Aliassime odds from the best betting sites are below:Jannik Sinner – 1/25Felix Auger-Aliassime – 13/1Odds provided by BetMGM are subject to change.Jannik Sinner vs Felix Auger-Aliassime: Head-to-Head and recent formJannik Sinner is the defending champion and the world no.1 ranked player. The Italian has looked in a different class at the 2025 US Open, losing just one set on his way to reaching the last four.Brushed aside by the Italian at Flushing Meadows have been Vit Kopriva, Alexei Popyrin, Denis Shapovalov, Alexander Bublik and Lorenzo Musetti. Shapovalov is so far the only opponent to take a set of Sinner. But such has been the no.1 seed’s dominance, Vit Kopriva won only four games in their first round clash, Bublik won just three in the fourth round and Sinner’s Italian compatriot Musetti won seven in their quarter-final.Sinner’s victory over Musetti was his 26th win in a row on hard courts in Grand Slam competitions. Including his run to last season’s Flushing Meadows’ final, he has now reached five successive Grand Slam semi-finals in a row and seven of the last eight. Another win in his latest semi-final showdown will see Sinner make it to five Grand Slam finals in a row – underlining his consistency at the top level of the sport.Felix Auger-Aliassime has had a US Open to remember. The Canadian is the no.25 seed, but he has seen off two top 10 seeds on his way to the last four, which equals his best ever performance at Flushing Meadows, having also reached the semi-finals in 2021.Auger-Aliassime has defeated Billy Harris, Roman Safiullin, Alexander Zverev, Andrey Rublev and Alex de Minaur. His win over Zverev in the third round was one of the shocks of the competition, with the Canadian coming from a set behind to defeat the no.3 seed in four sets. The 2021 semi-finalist has had to fight hard for his place in the last four. He has played six tie breaks on his way to clinching a place in the semi-final of a Grand Slam for the second time in his career. Auger-Aliassime is certainly battle hardened. But these grueling matches will have taken plenty out of him, and unless something truly dramatic happens, this looks set to be his last match at this year’s championship.In the betting to win the competition, Jannik Sinner is the 4/6 favourite with Betfred. Carlos Alcaraz is second at 6/4, Novak Djokovic is 14/1 and Felix Auger-Aliassime is the outsider at 40/1.Jannik Sinner vs Felix Auger-Aliassime betting predictions and tipsJannik Sinner took just two hours to dismantle fellow Italian Lorenzo Musetti in their quarter final. In contrast, Felix Auger-Aliassime needed a grueling four hours to defeat Alex de Minaur. The odds were already stacked enough against the Canadian. The extra miles in his legs will only make the job harder. Our semi-final match tips follow: Jannik Sinner to win 3-0Jannik Sinner has barely had to break sweat to reach the last four of the US Open. The only thing that can derail Sinner is injury. Even if he takes his eye off the ball slightly and starts to look ahead to Sunday’s final, it still shouldn’t be enough to prevent him beating Auger-Aliassime.Odds of 4/9 on a three sets to nil victory aren’t great, but they are far better than odds of 1/40 to win the match. Back Jannik Sinner to win 3-0 at 4/9 with SBK Under 0.5 tie breaksOkay, we know that Felix Auger-Aliassime has been involved in six tie breaks so far at the US Open, but we also know that Jannik Sinner has been winning matches at a canter.We can see Sinner’s run of dominating matches continuing, and we don’t see Auger-Aliassime being able to even get close to winning a set.The Canadian also had a far harder workout in his quarter-final than Sinner, and we feel that makes a comfortable win for the tournament favourite all the more likely. Back under 0.5 tie breaks at 4/6 with BetMGM Under 29.5 games in the matchJannik Sinner has only been involved in one match at the 2025 US Open that has gone over 29.5 games. It was in his third round win over Denis Shapovalov – a match that required 40 games to get the job done. In his other four matches Sinner has needed just 22, 25, 21 and 25 games to win the match. As we can see Sinner crushing Auger-Aliassime in three sets, we think backing under 29.5 games at odds against is a very worthwhile wager. Back under 29.5 games in the match at 6/5 with Betfred How to watch the Jannik Sinner vs Felix Auger-Aliassime match liveThe Sinner vs Auger-Aliassime showdown is available to watch live across the Sky Sports platform, with the match starting in the early hours of Saturday morning. For more US Open updates, stay tuned to talkSPORT, where we also have plenty of free tennis betting tips on all the big matches throughout the remainder of the tournament. Location: Billie Jean King National Tennis Center, New York, USA.Date and time: Saturday 6th September, 12.00am.How to watch: Live on Sky Sports Main Event, Sky Sports Tennis and Sky Sports UHDR.About the authorDean EtheridgeDean Etheridge is an experienced freelance sports betting writer who specialises in football, cricket, and darts, with a keen focus on the Premier League and Champions League, as well as in-depth coverage of Premier League Darts and major tournaments. He can turn his hand to all aspects of the beautiful game and beyond, delivering expert analysis across a range of sports. He predominantly covers the Premier League and Champions League but can turn his hand to all aspects of the beautiful game. You can follow Dean on LinkedIn (@deanetheridge)Commercial content notice: Taking one of the bookmaker offers featured in this article may result in a payment to talkSPORT. 18+. T&Cs apply. 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