.TURIN, Italy– Top-ranked Jannik Sinner became the very first player to advance to the semifinals at the ATP Finals on Thursday.Sinner was assured of a location in the final four after USA Open finalist Taylor Fritz beat Alex de Minaur 5-7, 6-4, 6-3 in their group.Sinner won his opening up pair of matches and also plays Daniil Medvedev later on. Last year, Sinner lost the ultimate to Novak Djokovic, who pulled out wounded this year.Fritz also has two wins, while Medvedev is still in contention as well as could get to 2 wins by beating Sinner. De Minaur was mathematically dealt with without any triumphes in his finals debut.The best 2 finishers in each team innovation to the semifinals.Alexander Zverev leads the various other group before Casper Ruud, Carlos Alcaraz and also Andrey Rublev.