Comparing Spaniards Rafael Nadal and Carlos Alcaraz, who recently won his first ATP 1000 Masters title in Miami, ex-world number two Alex Corretja said he's hopeful that soon 18-year-old will be close to 21-time Grand Slam champion. "Rafael isn't jealous of Alcaraz. He knows...Alcaraz is great," he added. Alcaraz became third youngest 1000 Masters winner after Michael Chang and Nadal.