RELATED: The Most Impressive Ken Griffey, Jr., Collection in the World Griffey Super Collector Jason Vass / Jason Vass So just what are the Impossible Baseball Cards of Ken Griffey, Jr?

His baseball cards, especially his rookie cards, have been invaluable and highly sought after by collectors since the late 1980s. Here’s a list of Ken Griffey Jr.’s most valuable cards.

The man with the sweetest swing to ever play the game of baseball. Check that, The Kid, with the sweetest swing to ever play the game, just set a record. Ken Griffey Jr. 's 1998 Skybox card sold ...

Snell compiled a list of his five all-time best players. Griffey was first, followed by Barry Bonds, Randy Johnson, Ichiro ...

2010 — Ken Griffey Jr. announces his retirement after 22 seasons in the major leagues. Hitting only .184 in part-time duty for the Mariners, he retires with 630 career home runs and six seasons of 40 ...

Los Angeles Dodgers pitcher Blake Snell is making a bold claim. Snell thinks that Ken Griffey Jr. is the best baseball player of all time, per MLB Network. Snell compiled a list of his five all ...

The 6-foot-10 left-hander, walked six and struck out eight while pitching the first no-hitter at the Kingdome, which opened for baseball in ... 2010 — Ken Griffey Jr. announces his retirement ...

Get any of our free daily email newsletters — news headlines, opinion, e-edition, obituaries and more. 1928 -- Les Bell of the Boston Braves hit three home runs and a triple at Braves Field, but ...

The Major League Baseball-licensed figure is part of FOCO's Reds collection. Ken Griffey Jr. Sports Illustrated cover bobblehead FOCO's description: "June 14th, 2004: A healthy, happy Ken Griffey ...