Carlos Alcaraz has definitively shaken off the label of ‘promise’ and has shown that he is already the present. The very young Spaniard won his first Masters 1000 in Miami, regulating Casper Ruud in two sets despite an uncertain start.The Murciano became the first Iberian tennis player in history to prevail in the Florida tournament. Carlos is also the third youngest ever to win a ‘1000’ title, behind only Michael Chang and compatriot Rafael Nadal.The latter was one of the first to congratulate Alcaraz, who made himself the author of a week on the verge of perfection. Juan Carlos Ferrero’s pupil only took a big risk in the quarterfinals against Miomir Kecmanovic, recovering a 3-5 disadvantage in the decisive tiebreak thanks to a couple of exceptional points.Alcaraz, who will return to action in Mont …