Fried had been scheduled to start Wednesday in the Braves' series finale against the New York Mets at CitiField.
The move was made retroactive to Saturday.
Last Friday, Fried pitched seven innings, allowing one run on just two hits in a victory over the St. Louis Cardinals. He is 4-4 with a 4.21 ERA in 11 starts this season.
"He noticed [the blister] during the last hitter of his last start," manager Brian Snitker told reporters, according to the Atlanta Journal-Constitution. "We were treating it and waiting as long as we could to see if it'd heal. I think it's something that, if he had to pitch, he probably could. I think being proactive and being in front of it, we can hopefully just skip a start and hopefully he'll be ready when he's eligible to come off."
The Braves recalled right-hander Kyle Wright in a corresponding move. He will start in Fried's place on Wednesday against the Mets, Snitker said.