Reyes was recalled from Triple-A Norfolk on Wednesday.
Reyes was sent to the minors last Thursday, but he'll rejoin Baltimore's bullpen after spending just under a week in the minors. The right-hander has posted a 1.59 ERA and 0.88 WHIP in 5.2 innings over two appearances (one start) in the majors. While he's capable of serving as a starter, he should take on a multi-inning relief role after Zac Lowther was sent down Wednesday.