Cal Ripken Jr.'s Iron Man record isn't unbreakable, and here's why : r/ baseball
List of Major League Baseball consecutive games played streaks - Wikipedia
September 6, 1995: Cal Ripken surpasses Lou Gehrig's 'unbreakable' record with 2,131st consecutive game – Society for American Baseball Research
When Cal Ripken Jr. Became a God, Broke the Unbreakable Record, News, Scores, Highlights, Stats, and Rumors
Cal Ripken Jr.: Iron Man
When Cal Ripken Jr. Became a God, Broke the Unbreakable Record, News, Scores, Highlights, Stats, and Rumors
5 MLB records that will never be broken by anyone
Cal Ripken looks back on streak - SI Kids: Sports News for Kids, Kids Games and More
Viewers guide - The night Cal Ripken Jr. became baseball's Iron Man - ESPN
Baseball legend Cal Ripken Jr. visits Tulsa school
Baseball's 'Iron Man' Cal Ripken Plays Not My Job : NPR