Scott Daniel Sizemore (born January 4, 1985) is an American former Major League Baseball (MLB) infielder who played for the Detroit Tigers, Oakland Athletics, and New York Yankees from 2010 to 2014.

[6] On October 23, 2009, Sizemore broke his left leg during a collision while playing in the Arizona Fall League the previous day.

On April 11, Sizemore got his first extra base hit (a double) and an RBI in the bottom of the Seventh at Comerica Park against the Cleveland Indians.

Detroit recalled newcomer Danny Worth from Toledo and transferred veteran Carlos Guillén to second base.

On February 27, 2012, it was announced that Sizemore tore his anterior cruciate ligament (ACL) in his left knee, causing him to miss the entire 2012 season.

[13] On April 10, 2013, it was announced that Sizemore re-tore his ACL in his left knee, causing him to miss the rest of the 2013 season.

In spring training in 2014, Sizemore competed with Eduardo Núñez, Zelous Wheeler, Dean Anna, and Yangervis Solarte for a reserve infielder role with the Yankees.

[16] On April 15, 2014, Sizemore's contract was purchased from the Scranton/Wilkes-Barre RailRiders by the Yankees, adding him to their 40-man roster, to replace catcher Francisco Cervelli who was placed on the 60-day Disabled List.