HOUSE WITHOUT BREAKING, THAT IS ANOTHER STORY. STEVE: HERE ARE THE 20 AND YOUNGER GUYS. CAN I SEE SOME ID? ALCARAZ, FOUR IN THE WORLD. SINNER AT 10. RUNE HAS BEEN STRUGGLING OF LATE. NAKASHIMA PLAYED WELL THIS WEEK. JIMMY: SEEMS LIKE THERE'S ALWAYS THESE GENERATIONS OF GREATNESS. I REMEMBER DJOKOVIC, DEL POTRO, MARIN CILIC. THEY WERE ALL 19. ANDY MURRAY. ALL THE SAME AGE, DOING THEIR THING AT AN EARLY AGE. THIS IS THE NEXT, PERHAPS, THAT GENERATION THAT IS GOING TO DOMINATE FOR A DECADE. TRACY: NOW IS A QUESTION OF WHEN ARE THEY GOING TO MAKE THEIR FIRST GRAND SLAM FINAL, WHEN ARE THEY GOING TO TAKE THEIR FIRST GRAND SLAM CHAMPIONSHIP, AND HOW MANY TIMES WILL THEY PLAYED EACH OTHER DEEP? THAT IS EXCITING. STEVE: TWO ITALIANS IN THAT GROUP.