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.

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

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

Alcaraz youngest male to reach quarterfinals of a Grand Slam in Open era - AS USA

The future is now: Carlos Alcaraz wins US Open and becomes youngest world number one

Carlos Alcaraz wins US Open and becomes youngest world number one

Carlos Alcaraz claims US Open crown to become youngest ever world number one

Carlos Alcaraz Wins US Open, Becomes Youngest World Number One

JayFm Live - Carlos Alcaraz, 19, wins US Open to become youngest world No. 1 in men's tennis history

Alcaraz replaces Hewitt as youngest No.1, St George & Sutherland Shire Leader

PIX: Alcaraz rediscovers the joy of tennis at US Open - Rediff.com