Ken Griffey Jr. and Ken Griffey Sr. are father and son baseball players who both had successful careers in Major League Baseball. Ken Griffey Jr. was a 13-time All-Star, 10-time Gold Glove winner, and 1997 American League MVP. He is widely considered one of the greatest players of all time. Ken Griffey Sr. was a three-time All-Star and two-time World Series champion. Together, they are the first father-son duo to play on the same team in MLB history.