The Cleveland Guardians were dealt a dose of bad news this morning. On Sunday, April 26, the Guardians announced that veteran reliever Shawn Armstrong would be placed on the 15-day injured list following a right groin strain. In his place, the front office is recalling Colin Holderman, who the team signed this past offseason to a one-year, $1.5 million deal. Before heading to the IL, Armstrong had been having an up-and-down start to the year. Across 12 starts and 10.2 innings pitched, he had posted a 4.22 ERA with a 1.41 WHIP and .205 batting average against. Unfortunately, bringing up Holderman isn't expected to be an upgrade, at least with what the 30-year-old put on display before his initial optioning to Triple-A. Per @tim_stebbins , the #Guardians are losing reliever Shawn Armstrong to a right groin strain. He will be headed to the injured list. In his place, Colin Holderman is being recalled from Columbus.…