Matt Wieters, who injured his left hamstring a week ago and landed on the DL last Friday, underwent surgery Wednesday and will miss an undisclosed amount of time.

The Nationals’ announcement today came as a surprise, as there hadn’t been anything from the team to suggest that Wieters’ injury was more than a typical strain. No further details regarding the procedure were provided, so there’s no telling when he might return. It’s safe to say it’s going to be quite a while before he’s back, though.

Wieters was off to a solid start this year, hitting .231/.342/.385 with three homers in 65 at-bats before getting hurt. That doesn’t sound like much, but it’s a big improvement on last year’s .225/.288/.344 line. The Nationals considered trying to move on from Wieters and sign Jonathan Lucroy over the winter. They also talked with the Marlins about J.T. Realmuto. One imagines they’ll start working the phones again now. However, they’re not in terrible shape with Pedro Severino as a starter. Severino has impressed this year, batting .275/.386/.356 in 73 at-bats.