In the world of pro sports, athletes are very attached to their numbers. Once a year, though, everyone in Major League Baseball sets theirs aside.

Griffey said Selig suggested asking Rachel Robinson, Jackie's widow. Griffey was told he could wear No. 42, with the offer also extended to any player wanting to honor Robinson in such a way ...

Robinson married Rachel Isum ... Clemente in 1973. 40. Jackie Robinson's number, 42, was retired throughout major league baseball. You won't see any baseball players wearing the number 42 ...

When Rachel Robinson and the foundation she started in honor of her barrier-breaking husband opened the Jackie Robinson ...

Jackie Robinson was the first to break baseball's color barrier with the Brooklyn Dodgers 78 years ago Tuesday.