Vizcaino (side) was placed on the DL on Saturday with a right oblique strain, Kevin McAlpin of 680 The Fan in Atlanta reports.
The writing was on the wall Friday, when manager Brian Snitker intimated that Vizcaino's injury would likely require a DL stint. The move was made official Saturday, and the Braves opted to activate Eric O'Flaherty from the DL to fill his spot on the 25-man roster.