Mariano Rivera, the man who intimidated thousands of batters merely by opening a bullpen door, began his incredible journey as the son of a poor Panamanian fisherman. When first scouted by the Yankees, he didn’t even own his own glove. He thought he might make a good mechanic. He became arguably the best closing pitcher in the history of the game of baseball. He talks with ABC's Amy Robach about his life on and off the field.