Carlos Alcaraz is building a résumé of near-death experiences that would make a cat nervous. Down a set and facing two match points against Taylor Fritz in the Paris Masters quarterfinals, the 23-year-old Spaniard clawed back to win 6-7 (10/12), 7-5, 6-3 — reaching the last four of the event for the first time in his career. The pattern is becoming unmistakable: Alcaraz plays his best tennis when the scoreboard says he shouldn't be playing at all. The first set was a war of attrition. Alcaraz broke Fritz in the fifth game with a whipped forehand passing shot, then watched his own serve collapse as Fritz broke back to level at 5-5. The tiebreak was chaos — both players squandered set points before Alcaraz dumped a forehand wide to cede the opener 12-10. At that point, Fritz had every reason to believe the match was tilting his way. The second set nearly ended it. Fritz broke in the seventh game and had match point on his racket — twice. The first was saved by pure nerve. The second fell to a passing shot that had no business clearing the net from where Alcaraz was standing, well wide of his own tramlines. "After that game, I started to enjoy it," Alcaraz said, describing the psychological flip that transforms him from a player fighting for survival into one dictating terms. He broke Fritz twice to steal the set 7-5. The third set was a formality dressed up as a tennis match. Alcaraz surged to 3-1 when Fritz pushed a volley wide, and though break points kept materializing — this match never stopped threatening a twist — the Spaniard sealed it on his first match point with a forehand that Fritz could only get a frame on. The Parisian crowd, already primed by memories of his five-set French Open final comeback against Sinner, got exactly the show they came for. Alcaraz faces Casper Ruud in Saturday's semifinal after the Norwegian dispatched Portuguese lucky loser Nuno Borges 7-6 (7/5), 6-4. In the other half, Ben Shelton beat Tommy Paul 6-4, 4-6, 6-3 in an all-American quarterfinal and will meet home favorite Luca Van Assche, who ended qualifier Rinky Hijikata's deep run. The Fritz and Paul losses carry consequences beyond Paris. Both players' defeats extinguished their ATP Finals qualification hopes, clearing the path for Frances Tiafoe and 20-year-old Spaniard Rafael Jodar to make their debuts at the season-ending event in Turin (November 15-22). Shelton's tribute to Tiafoe — "one of my best friends, and to see him make Turin for the first time is amazing" — was a rare moment of genuine warmth in a sport that often struggles to produce it. What makes Alcaraz's Paris run notable isn't just the result but the method. Seven Grand Slam titles already, and yet the defining characteristic of his game is not dominance but resurrection. He needed only one match before the quarterfinals, showed no rust, and still managed to manufacture a crisis before solving it. "Probably this match is going to be one of the most special matches that I ever played," he said. At this rate, he'll run out of superlatives before he runs out of comebacks.