Shuckers left-handed ace Josh Hader was promoted to Triple-A Colorado Springs on Saturday.
He will be replaced by right-hander Adrian Houser in the rotation after he was activated from the disabled list Saturday. The Milwaukee Brewers also signed Gabriel Noriega to a minor league contact and he will take over at shortstop.
In addition to Saturday's moves, Biloxi outfielder Gabriel Noriega was transferred to Class-A Brevard County, Fla.
Hader, 22, led the Southern League and is currently third in the minor leagues with a 0.95 ERA and a WHIP of 1.00 in 11 starts. He is tied for the league lead with 73 strikeouts and ranks tied for fifth in all of the minors.
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The southpaw has not allowed more than one earned run in any of his starts, and the Shuckers have gone 9-2 when the Millersville, Md. native takes the mound, including victories in his first five starts of the season. The 2012 draft pick has held left-handers to a .073 average (3-for-41).
Hader was named the Milwaukee Brewers' Pitcher of the Month for May, compiling a 1-1 record with a 0.96 ERA in 28 innings to go along with 33 strikeouts and eight walks, while holding opponents to a .189 average and posting a WHIP of 0.93.
Noriega batted .211 with five RBI in 31 games with the Mobile BayBears this season.