TURIN, Italy — Italy’s Jannik Sinner sent the Turin crowd wild as he battled past Spanish world number one Carlos Alcaraz 7-6(4) 7-5 in the ATP Finals title decider on Sunday to retain his trophy in the season-ending championships.

In a season defined and dominated by the rivalry between the two players, it seemed inevitable that they would meet in the title clash and both obliged by easing through the tournament unbeaten to set up one last dance in Turin.

Alcaraz forced the only break point in the first set but Sinner held firm and brought the crowd to its feet with a tiebreak win, and sealed the match when the Spaniard was unable to hold while serving to stay in the contest.

Sinner missed out on ending the year as world number one to Alcaraz after the Spaniard won his three round-robi

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