The Royals placed struggling reliever Juan Cruz on the 15-day disabled list because of a strained right shoulder prior to Thursday’s series finale against Seattle at Kauffman Stadium.
Reliever Doug Waechter was activated from the disabled list as Cruz’s replacement.
Cruz, 30, has a 6.17 ERA in 43 games and has been remarkably ineffective since mid-May -- allowing 29 earned runs and 36 hits in 28 innings over 27 appearances. He gave up one run and three hits in two innings Wednesday in an 11-6 loss to the Mariners.
Waechter, 28, hasn’t pitched in the big leagues since April 17. He initially went to the disabled list because of a strained right elbow but subsequently suffered a strained left oblique while on a rehab assignment.
Waechter completed a 30-day rehab assignment last Sunday at Class AAA Omaha, where he allowed 10 earned runs and 20 hits in 17 2/3 innings in 12 appearances.