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#Dbacks reinstate pitcher Randall Delgado from the 15-day DL and option infielder/outfielder Jamie Romak to the Triple-A Reno @Aces.
— Arizona Diamondbacks (@Dbacks) August 17, 2015
The team had been operating with a standard seven-man bullpen, and a five-man bench, but it appears that in the current lengthy stretch without a day off (21 games in 20 days, including a double-header in Colorado), having an extra bullpen arm was deemed more important than an additional bat. Delgado last pitched for the team on July 27, then turned his ankle while warming up for a game in Seattle. He had been pitching well, with a 2.79 season ERA, and better than that of late; over his last 25 appearances for the Diamondbacks, Delgado had a 1.84 ERA over 29.1 innings of work, with 28 strikeouts over that time.
He had made a couple of minor-league appearances, though since the injury wasn't a pitching one, this seems more a case of keeping his arm fresh than anything much. He allowed two earned runs in his first appearance for our AZL team, then worked a clean inning with a pair of strikeouts for Double-A Mobile on Saturday. Romak appeared in a total of six games with the D-backs, but made just the solitary start: he hit .300 (3-for-10), with a double, an RBI and a pair of runs scored.