Poking around the internet as one does during these holiday weeks of light workloads, I came across an interesting tidbit about Mariano Rivera. We all know Mariano as the last player to wear 42, after it was retired in 1997 for Jackie Robinson. But that almost never happened because Reggie Jackson was going to wear 42 to honor Robinson, and even went as far as to have a 42 jersey presented at his 1976 introductory press conference.