The Pirates have placed opening-day starter Francisco Liriano on the 15-day disabled list due to a strained left oblique muscle, the club announced Wednesday. The lefty departed Tuesday night's start against the Cubs early due to the injury.
As a corresponding move, the Pirates have recalled right-handed reliever Stolmy Pimentel from his rehab assignment. He had been on the DL since May 4 with a shoulder injury.
No timetable was given as to a possible return for Liriano, but oblique injuries have been known to sideline guys for upwards of four to six weeks at times.
Liriano, 30, finished ninth in NL Cy Young voting last season but has gone 1-6 with a 4.60 ERA, 1.45 WHIP and 77 strikeouts in 72 1/3 innings this season.
Gerrit Cole is also on the DL among Pirates rotation members. That means the Pirates have a rotation of Charlie Morton, Edinson Volquez, Jeff Locke, Brandon Cumpton and still need another. It could be Vance Worley.
Regardless, the Pirates definitely have rotation issues right now.