Carlos Alcaraz becomes youngest World No. 1 in men's tennis after

US Open: 19-year-old Carlos Alcaraz became the first teenager to be ranked No. 1 in ATP rankings history after he defeated Casper Ruud in 4 sets in the final in New York for his maiden Grand Slam title.

Alcaraz wins US Open, becomes youngest world number one

Tennis: Carlos Alcaraz wins U.S. Open, becomes youngest to reach No. 1, Pro Sports

PROFILE - Carlos Alcaraz: Youngest World No. 1 in men's tennis

Carlos Alcaraz becomes youngest year-end No. 1 in men's tennis as Rafael Nadal's slump continues at ATP Finals

One of tennis's rising young stars announced his arrival with US Open men's title and No. 1 ranking - The Boston Globe

US Open: Carlos Alcaraz, 18, Youngest To Reach Men's Singles Quarters In Open Era

Carlos Alcaraz becomes youngest world No 1 after winning US Open

US Open: Carlos Alcaraz reaches US Open final; Spaniard could become youngest world No 1, Tennis News

Carlos Alcaraz wins U.S. Open, becomes youngest to reach No. 1 - Field Level Media - Professional sports content solutions

US Open news, Carlos Alcaraz becomes youngest male quarter-finalist at Flushing Meadows in Open era