10:56 am: Strasburg felt shoulder discomfort after a recent bullpen session, manager Dave Martinez tells reporters (including Dan Kolko of MASNsports.com). A subsequent MRI revealed the inflammation. The Nationals hope his absence won’t be particularly long, although there’s no current defined timetable for his return.

9:44 am: The Nationals announced they’ve placed right-hander Stephen Strasburg on the 10-day injured list, retroactive to April 15, with right shoulder inflammation. Righty Paolo Espino was selected from the alternate training site to start this afternoon’s game in Strasburg’s stead. Additionally, Washington placed reliever Wander Suero on the 10-day IL with a left oblique strain and recalled righty Ryne Harper.

Washington did not give a timetable for Strasburg’s return. Today’s IL placement is the latest injury setback for the star right-hander, who was limited to just two starts during the shortened 2020 season by carpal tunnel syndrome. The 32-year-old was also hampered by a leg injury during Spring Training, but it didn’t prevent him from beginning this season on the active roster. Unfortunately, he’ll now deal with a shoulder issue after a pair of regular season starts.

Espino, 34, made a pair of appearances for the Nats last season. That was his first big league time since 2017, the only other year in which he’s appeared in the majors. While Espino was outrighted off the 40-man roster last fall, he returned to the organization on a minor-league deal. He’ll make a spot start today against the Diamondbacks.

Suero left yesterday’s appearance after facing just one batter and was reported to be headed for an MRI, so it’s no surprise he’s headed to the injured list. Harper will return to take Suero’s place in the bullpen for now.