Phil Maton allowed one walk and struck out one over 1.1 innings in Sunday's 3-2 loss to Seattle.
Julio Rodriguez went 3-for-6 with a home run, two additional runs and three RBI for High-A Everett in the affiliate's 20-3 win over Tri-City on Sunday.
Tucker Davidson was recalled from Triple-A Gwinnett on Monday.
The Pirates are hoping for a return by Phillip Evans (hamstring) before the end of May.
Victor Robles went 1-for-2 with a walk, a double, a run scored and a stolen base in Sunday's win over the Diamondbacks.
Colin Moran (groin) fielded ground balls Saturday but isn't expected back until the latter part of May.
Clay Holmes threw two scoreless innings in a 4-1 loss to the Giants on Sunday, allowing one hit and one walk while striking out one.
Adam Frazier went 2-for-4 with a walk in Sunday's 4-1 loss to the Giants.
Kevin Newman went 0-for-3 with a walk and his first stolen base of the season in Sunday's 4-1 loss to San Francisco.
Enrique Hernandez (hamstring) went 2-for-4 with two home runs and five RBI for Triple-A Worcester on Sunday.
Brock Holt (hamstring) will begin a rehab assignment this week and possibly be activated later in the week, Sam Blum of the Dallas Morning News reports.
Chas McCormick went 1-for-3 with a walk, two RBI and a run scored in Sunday's 6-2 win over the Rangers.
Enoli Paredes allowed one hit and struck out two over a scoreless ninth inning in Sunday's 6-2 win over Texas.
Alex Young allowed one hit and struck out one over two scoreless innings in Sunday's 3-0 loss to Washington.
Stephen Vogt went 1-for-3 with a walk and a double in Sunday's 3-0 loss to the Nationals.
Kendall Graveman pitched a scoreless ninth inning on one hit while striking out one to earn the save over Cleveland on Sunday.
Shane Bieber (4-3) allowed three earned runs on five hits and four walks while striking out seven across 4.2 innings, taking the loss to the Mariners on Sunday.
Jazz Chisholm went 2-for-5 with a stolen base and a run scored in the 3-2 win over the Dodgers on Sunday.
Rafael Devers went 1-for-4 with a three-run home run and two strikeouts in Sunday's 6-5 loss to the Angels.
Kevin Plawecki went 2-for-3 with a solo home run and a strikeout in Sunday's 6-5 loss to the Angels.