Michael Thomas Morgan is an American former right-handed pitcher in Major League Baseball. He played for 12 different teams over 25 years, and is one of 31 players in baseball history to appear in Major League baseball games in four decades (1978–2002). Upon his retirement, Morgan held the major league record for most major league teams played for (12), but this record was surpassed by Octavio Dotel in 2012 and Edwin Jackson in 2018. Because of this, Morgan was nicknamed "the Nomad" by his teammates due to his constant travel from team to team.

Octavio Eduardo Dotel Diaz is a Dominican former professional baseball pitcher. Dotel played for 13 major league teams, the second most teams played for by any player in the history of Major League Baseball (MLB), setting the mark when he pitched for the Detroit Tigers on April 7, 2012, breaking a record previously held by Mike Morgan, Matt Stairs, and Ron Villone. Edwin Jackson broke this record in 2019. Dotel's longest tenure with any one team was the five seasons he spent with the Houston Astros.