De Leon (back) was placed on the minor-league disabled list Sunday, Marc Topkin of the Tampa Bay Times reports.
De Leon strained his lat during his most recent outing, and it seems that the ailment is bad enough to warrant a DL stint. The minor-league DL is shorter that the major-league one, however, so it's worth noting that the pitching prospect may still only miss one start as a result of this injury. More information on his return should become available once he ramps up his throwing again.