After spending just under a month in Louisville, Arroyo will rejoin the big-league club Friday. Over his last 15 games in Triple-A, the 23-year-old is slashing .239/.271/.239 in 48 plate appearances. The Reds sent Ke'Bryan Hayes (groin) to the injured list, opening a spot on the 26-man roster for Arroyo.

Arroyo has served as the Reds' primary second baseman since early June but has produced just a .244/.286/.282 batting line with zero home runs and a 5:31 BB:K across 142 plate appearances. If he can get back on track at Louisville, Arroyo could receive another opportunity later this season. For now, though, the Reds appear poised to hand their second-base job back to Matt McLain, who returned from the injured list Thursday.