Jackie Robinson Day 2016

People pass by a Philadelphia Mural Arts Program mural of Jackie Robinson in Philadelphia.

Atlanta Braves players line up during the national anthem wearing 42 in honor of Jackie Robinson Day before a game against the Marlins in Miami.

The Phillie Phanatic watches a Jackie Robinson tribute on the big screen prior to action against the Nationals at Citizens Bank Park.

A general view of third base for a Jackie Robinson emblem on it at Target Field.

Bartolo Colon of the Mets talks with Jason Kipnis of the Indians.

The Pirates' Andrew McCutchen, right, and Josh Harrison warm up while wearing No. 42 in honor of Jackie Robinson Day.

Carolyn Mitchell, 79, who saw Jackie Robinson play in the early 1950s, listens during a ceremony honoring the baseball pioneer in Philadelphia, where Robinson experienced racism as Major League Baseball's first black player.

Philadelphia councilwoman Helen Gym, center, accompanied by other city officials, speaks during a ceremony honoring honoring the baseball pioneer Jackie Robinson in a city where he experienced racism as Major League Baseball's first black player nearly 70 years ago.