Jackie Robinson’s blue number 42

Jackie Robinson's #42, in Dodger blue, is displayed at Citi Field in New York City. Robinson's iconic number was retired for all teams by Major League Baseball in 1997, the 50th anniversary of Robinson's entry into the majors.

Photo taken in 2009 by Wikimedia contributor Jtesla16, and licensed under the Creative Commons Attribution 3.0 Unported license.