If the Royals reach the postseason and Colon is not healthy, the move means that he could be replaced on the active roster by a player who was not on the 40-man roster prior to Sept. 1. Colon could not be replaced if he were not on the DL, assistant general manager Dean Taylor explained.
Similarly, pitcher Luke Hochevar could be replaced by another player because of his time on the 60-day disabled list following elbow surgery. That opens the way for a player such as pitcher Brandon Finnegan, who wasn't added to the 40-man roster until Sept. 1.
Dick Kaegel has been covering the Royals since 1988 and has been the MLB.com beat reporter since 2004.
This story was not subject to the approval of Major League Baseball or its clubs.