Atlanta recalled Toussaint from Triple-A Gwinnett on Tuesday.
Toussaint and Dylan Lee will both join Atlanta in Los Angeles for the second game of the team's series with the Dodgers, giving the bullpen a fresh pair of arms after starter Huascar Ynoa lasted just 3.2 innings in Monday's 7-4 loss. Ynoa was demoted to Gwinnett in a corresponding move, but Toussaint isn't expected to get a look in the rotation in his place. Instead, Atlanta will likely condense from a six-man rotation to a five-man setup, with Kyle Wright and Bryce Elder occupying the back-end spots.