Suarez was placed on the 15-day injured list with right knee inflammation Tuesday.
Suarez struck out nine in six scoreless innings over his last six relief appearances, but he's apparently dealing with a knee injury that will force him to miss at least two weeks. A timetable for his return hasn't yet been revealed, but left-hander Adrian Morejon was recalled from Triple-A El Paso to take his place in the bullpen.