Racing PositionsTrump welcomes Opening Day with Rivera, kids9M25 years ago, Mariano Rivera made the one great start -- yes, start -- of his Hall of Fame career9MSam MillerMariano Rivera had not one, but two Hall of Fame careers2YSam MillerMo wasn't afraid to chew out 'somebody who needed it. Like me': A-Rod on Mariano Rivera2YAlex Rodriguez as told to Buster OlneyRivera awed by first visit to HOF: No better day2YWhy a unanimous Hall of Famer is great for baseball2YSam MillerOlney: Behind Rivera's mask was an uncharitable competitor2YBuster OlneyMariano's family fired up about news of unanimous selection2Y0:33Olney: Why Mariano Rivera could be the first unanimous Baseball Hall of Famer2YBuster OlneyRivera, Halladay new to Hall of Fame ballot2Y