The Mariners and Dodgers will play in Major League Baseball’s annual Civil Rights Game on Wednesday, April 15, on Jackie Robinson Day. This is the first time that Baseball’s annual tribute to civil rights leaders and figures will be held on the same day as the celebration of Jackie Robinson’s contributions to baseball.

The game, which starts at 7:10pm at Dodger Stadium, will be carried live on ESPN 2, as well as ROOT SPORTS in the Pacific Northwest.

This is the first time the Mariners have played in a Civil Rights Game. The Dodgers played in one in 2012.

This year marks the 70th anniversary of Jackie Robinson signing his first professional contract with the Brooklyn Dodgers organization in 1945, which was the first step toward his eventually breaking of the color barrier on April 15, 1947.

During games played on April 15, all players will wear Robinson’s number 42. The number was retired by Major League Baseball in 1997. Ken Griffey Jr. started the tradition when he asked Commissioner Selig if he could wear Robinson’s number. Rachel Robinson, Jackie’s widow, granted permission. Since then, all players have worn the number on April 15 in Robinson’s honor.