Spain's Carlos Alcaraz wins men's singles U.S. Open championship

Carlos Alcaraz of Spain beat Norway's Casper Ruud in four sets to win the men's singles final at the U.S. Open, his first tournament win at Flushing-Meadows. Alcaraz, 19, is the first male teenager to win a Grand Slam since Rafael Nadal won the French Open in 2005.

Alcaraz will now take over as world No. 1, becoming the youngest player to ever be the world's top-ranked player.

Alcaraz took the first set but lost the second to Ruud, the No. 5 seed. Ruud led 6-5 in a marathon third set that lasted more than 70 minutes and ended with Alcaraz tying it up after a dramatic 15-minute game. Alcaraz then easily took the tiebreaker 7-1.