Geovany Soto (C, CHC) was placed on the 15-day DL Friday with a torn left meniscus. He will have arthroscopic knee surgery and is likely to miss 3-6 weeks. Wellington Castillo (C, CHC), an April callup, will assume regular catching duties until backup Steve Clevenger's (C, CHC) likely late-May return from a strained oblique. Career minor-leaguer Blake Lalli (C, CHC), profiled in Callups, was added to the roster as Castillo's temporary backup.