Record 21-time Grand Slam champion Rafael Nadal showed his class after losing to Carlos Alcaraz, saying the 19-year-old was better and deserved to win. On Friday in Madrid, Spanish tennis fans had a chance to watch Spain’s best two players go against each other. For the first time in his career, Alcaraz defeated Nadal 6-2 1-6 6-3. It was the third meeting between the two and Alcaraz’s first win over Nadal. “Happy for Carlos. He was better in various aspects. I need to get better like I said previously.I accept that. I have two and a half we …