In the Davis Cup, world No. 1 Alcaraz is defeated by Auger-Aliassime.
After winning the US Open last week, Carlos Alcaraz, the youngest men's tennis world number one in history, is only 19 years old.
had a bittersweet homecoming as Felix Auger-Aliassime defeated him in the Davis Cup match in Valencia 6-7 (3/7), 6-4, 6-2.
The Spaniard and his Canadian opponent played out an exhilarating second singles rubber, with Canada tying the match at 1-1.
The Spaniard received a standing ovation from the enthusiastic home crowd after winning his first Grand Slam match on Saturday.
He and his Canadian opponent on Friday were evenly matched during the opening set thanks to their respective powerful serving.
Alcaraz fought back each time to force a tie-break despite the Canadian's unusually punishing play,
which included seven aces and won 79 percent of his serve points in the opening set.
Until Auger-Aliassime broke to go ahead 5-4 in the second set, the match was brilliantly played and evenly contested. After that, he served.
After playing long matches in New York, Alcaraz began to weary in the third set.
World No. 13 Auger-Aliassime broke right away and then again to take the lead 4-1, holding off the Spaniard despite the loud support of the fans.