NEW YORK—Walking out for his first Grand Slam final at age 19, Carlos Alcaraz bumped fists with fans leaning over a railing along the path leading to the Arthur Ashe Stadium court. Moments later, after the coin toss, Alcaraz turned to sprint to the baseline for the warmup, until being beckoned back to the net by the chair umpire for the customary pre-match photos.
Alcaraz is imbued with boundless enthusiasm and energy, not to mention skill, speed, stamina and sangfroid. And now he’s a U.S. Open champion and the No. 1 player in men’s tennis.