Question: The Curse of Rocky Colavito is one of several sports superstitions centered on the failure to win a championship in any major league sport for how many years?
Sentence (from "Curse of Rocky Colavito"): The Curse of Rocky Colavito is a sports-related curse that supposedly prevents the Cleveland Indians Major League Baseball (MLB) franchise from winning, be it the World Series, the American League (AL) pennant, reaching postseason play, or even getting into a pennant race.
Relevant evidence: Yes