Alexander will operate as the Rangers' opening pitcher Monday in Cleveland, Shawn McFarland of The Dallas Morning News reports.
Alexander is set to become the first pitcher since 1969 to record saves in back-to-back games and then start the following contest. He'll likely handle no more than an inning or two before turning the game over to the bullpen. The Rangers haven't indicated whether a pitcher will work in bulk relief behind Alexander, but Winston Santos is the freshest arm in the bullpen and had worked at least four innings in each of his last six outings at Double-A Frisco before being recalled Wednesday.