The Diamondbacks outrighted reliever Christian Montes De Oca, according to the MLB.com transaction tracker. That drops Arizona’s 40-man roster count to 37.
Montes De Oca is a 26-year-old who made his big league debut this past season. Arizona first called him up in May but didn’t get him into a game before optioning him back out. He came back up in early June as the extra pitcher for a doubleheader in Cincinnati. Montes De Oca tossed 2 2/3 scoreless innings of mop-up ball, striking out two while issuing a walk.
That ended up being his only MLB appearance of the season. Montes De Oca went on the injured list with elbow inflammation a few days later. The Snakes subsequently announced that he was headed for surgery on a seemingly unrelated lower back injury. Montes De Oca finished the season on the injured list but needed to be reinstated onto the roster at the beginning of the offseason.
Montes De Oca didn’t enter the professional ranks until his age-22 season. He has pitched to a 4.34 earned run average in 186 2/3 innings over parts of four minor league seasons. He has punched out a quarter of opponents against a serviceable 8.1% walk rate. He’ll remain in the system as a non-roster player and figures to get an invite to big league camp if he’s healthy next spring.
Tomorrow evening is the deadline for teams to add players to the 40-man to keep them out of the Rule 5 draft. Mitch Bratt and Kohl Drake — the top two pitching prospects acquired from Texas for Merrill Kelly — will both need to be added to the roster. Dropping Montes De Oca gives them an extra spot in case they want to keep someone like Double-A outfielder Gavin Conticello, Triple-A starter Dylan Ray or former third-round pick Jacob Steinmetz out of the draft.