With the title, Alcaraz became the youngest man to win Majors on all three surfaces. He is 3-0 in Grand Slam finals, and now 11-1 in fifth sets. That speaks to his ability not to resist pressure, necessarily, but to thrive in it. He is only 21, so early into what will hopefully be a very long career that the major narratives about who he is and what makes him special are still being compiled. That career will surely be defined by what he pulls out under extreme duress. There is no reason not to believe he's up for it.