According to David Lennon at Newsday, the Mets have designated LHP Jon Switzer for assignment. He'll be replaced by infielder Argenis Reyes on the roster.
The 29-year-old Switzer had been signed to a minor-league deal this past winter. He posted an 8.11 ERA in 3.1 innings for the Mets, but had a solid 2.13 ERA and 29/9 K/BB ratio for Triple-A Buffalo. He could latch on a team looking for minor-league depth.