Aguiar (undisclosed) struck out two and allowed three earned runs on four hits and no walks over four innings for Triple-A Louisville on Saturday after being reinstated from the 7-day injured list.
Aguiar, who had been on the shelf since July 21, was cleared to rejoin the Louisville rotation after making just one three-inning rehab start at High-A Dayton earlier this month. The 25-year-old righty owns a 6.27 ERA and 1.55 WHIP over 47.1 innings across 12 starts with Louisville on the season.