Ramirez will serve as the Pirates' opening pitcher for Thursday's game against the Reds, Danny Demilio of PittsburghBaseballNow.com reports.
Thursday will mark the first start of Ramirez's seven-year MLB career. He'll likely pitch one or two innings before turning the game over to Hunter Barco, who is expected to work in bulk relief, per Demilio. Ramirez has submitted a 3.21 ERA, 1.38 WHIP and 62:33 K:BB across 56 innings this season.