Yankees legend Mariano Rivera: Team can't call itself a World Series champion after 60-game MLB seasonThe retired closer, who knows a thing or two about titles, weighs in during the coronavirus pandemic3/21/2020, 3:58 PMMar 28, 2019; Bronx, NY, USA; New York Yankees former pitcher Mariano Rivera throws out the ceremonial first pitch before a game against the Baltimore Orioles at Yankee Stadium. Mandatory Credit: Brad Penner-USA TODAY Sports / Brad Penner