Venditte was recalled from Triple-A Buffalo on Tuesday, Ben Nicholson-Smith of Sportsnet reports.
Venditte hasn't seen much of a difference in performance this season between the majors and the minors in terms of ERA, but the reliever has struck out 23 in 13 innings compared to just four walks at the Triple-A level. The switch pitcher will likely be deployed in lower-leverage situations until he can show consistent success at the big league level. Infielder Matt Dominguez was designated for assignment in a corresponding roster move.