Who knows why certain people are called up to join the Prime Mover?

Edgin was called up to join the Mets on July 13, 2012.

Lieber was called up by the Pirates in May of 1994 to join their starting rotation.

Consequently, in 2002 she was called up to join the Austrian national team for kickboxing.

He was called up to join the A's 25-man roster on May 17, 2013.

Men below decks were called up to join the others.

Stewart was called up to join the Padres on September 1, 2010.

He was also called up to join the preliminary squad for the 2007 Asian Cup, but was not included in the final list.

He was called up to join the Royal Corps of Signals.

He was called up to join the Indians before the 1936 season ended.