Spanish tennis superstar Rafael Nadal says Carlos Alcaraz is better positioned to beat Novak Djokovic than he would have been. On Friday, Alcaraz clinched the biggest victory of his career as he beat record 21-time Grand Slam champion Nadal 6-2 1-6 6-3 in the Madrid quarterfinal. It was the third meeting between the two and Alcaraz’s first win over Nadal. Nadal beat Alcaraz in Madrid last year and also defeated the 19-year-old this past March in Indian Wells. This week, Nadal was playing his first clay tournament of the clay season. On the other side, Alcar …