Stephen Strasburg is officially being placed on the DL with a lat strain, retroactive to June 1st. He will be eligible to return June 16th, though it is not yet known whether or not he will be ready then. Lat strains typically take 3-6 weeks to recover from.
The move does not come as a huge surprise, even though the team pushed his spot in the rotation back to June 8th in hopes that he could be healthy by then. He was supposed to pitch a bullpen session today, but was unable to do it and news broke that he was going on the DL shortly thereafter. His replacement will likely be a callup from Triple A Syracuse, and some have speculated that it could be Ross Ohlendorf, the former major league regular who has allowed only one run over his last two starts.