The Cleveland Indians have 25 spots available on their roster. Management determined that one of those spots should be filled by Rajai Davis. Surely this moment had something to do with the decision. His offensive production in 2017 (0.3 wins above replacement in two stops, per Baseball-Reference) likely had less to do with it.
Davis will be 37 years on Opening Day. His major league debut came in 2006 and his career has lasted longer than 50 of the 53 players drafted by the Indians that year, with the exceptions of Steven Wright, Chris Archer, and Josh Tomlin.