CHICAGO — If the Chicago Cubs rally to win this World Series, the degree of difficulty will make the victory even sweeter. They would need to win three in a row from the Cleveland Indians, including two on the road, to make it happen.
No baseball team has won quite that way since the 1979 Pittsburgh Pirates upended the Orioles in Baltimore. But there is a recent precedent in sports: The Cleveland Cavaliers trailed the Golden State Warriors, three games to one, in the N.B.A. Finals in June, only to storm back and win the title in Oakland.