CHICAGO, IL - OCTOBER 29: MLB Commissioner Rob Manfred laughs during a ceremony naming the 2016 winners of the Mariano Rivera American League Reliever of the Year Award and the Trevor Hoffman National League Reliever of the Year Award before Game Four of the 2016 World Series between the Chicago Cubs and the Cleveland Indians at Wrigley Field on October 29, 2016 in Chicago, Illinois. (Photo by Elsa/Getty Images)

CHICAGO, IL - OCTOBER 29:  MLB Commissioner Rob Manfred laughs during a ceremony naming the 2016 winners of the Mariano Rivera American League Reliever of the Year Award and the Trevor Hoffman National League Reliever of the Year Award before Game Four of the 2016 World Series between the Chicago Cubs and the Cleveland Indians at Wrigley Field on October 29, 2016 in Chicago, Illinois.  (Photo by Elsa/Getty Images)