Rolando Sarabia, 23, one of the Ballet Nacional de Cuba’s leading dancers, has defected to the US. “His departure, which was first reported by the Spanish newspaper El País, will be keenly felt in Cuba. Critics have called him the “Cuban Nijinsky” and compared him to the young Mikhail Baryshnikov. A company dancer since 1999, he has won ballet competitions in Paris; Varna, Bulgaria; and Jackson, Miss. Christened Sarabita by his many fans, Mr. Sarabia is the love object of at least half the adolescent balletomanes in Cuba, of which there are many.