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The St. Louis River Walkers have sent struggling relief pitchers Maximilliano Minelli and Frank Jimenez to AAA Memphis and called up Hydajet Hyseni and Victor Rosiles from the Redbirds.
The right-handed Minelli, 26, had pitched in nine games this season going 1-1 with a 13.50 ERA. He had pitched a total of 7.1 innings, during which he had a 3.68 WHIP and 15 walks against just nine strikeouts.
The 25-year-old Jimenez, a left-hander, also had been a huge disappointment.
He pitched in eight games going 0-2 with a 15.63 ERA. He pitched a total of 6.1 inning, during which he had a 2.53 WHIP with six walks and eight strikeouts.
Signed as a free-agent in the offseason, the 33-year-old Hyseni is in the majors for the first time.
The left-hander has pitched in eight games for Memphis, going 1-0 with a 2.38 ERA. He has pitched 11.1 innings, posting a 1.15 WHIP with 13 strikeouts.
Roisles, a 31-year-old right-hander, is back in the majors for the second time this season.
In his earlier stint, he pitched in one game going posting a 4.50 ERA for two innings. He struck out one and had a 1.00 WHIP.
At Memphis, Rosiles has worked in 2 games going 0-1 with one save and a 13.50 ERA. He pitched a total of 2.2 innings, striking out five and posting a 2.25 WHIP.