SEATTLE - APRIL 15:  Ken Griffey, Jr. of the Seattle Mariners waves to the crowd after hitting a solo home run against the Los Angeles Angels of Anaheim at Safeco Field April 15, 2009 in Seattle, Washington. All Major League Baseball players are wearing #42 in honor of Jackie Robinson day. Getty Images logo Getty Images 10 months ago

SEATTLE - APRIL 15: Ken Griffey, Jr. of the Seattle Mariners waves to the crowd after hitting a solo home run against the Los Angeles Angels of Anaheim at Safeco Field April 15, 2009 in Seattle, Washington. All Major League Baseball players are wearing #42 in honor of Jackie Robinson day.