Reliever Chris Withrow was optioned to Gwinnett on Sunday to make room on the 25-man roster.
Withrow allowed an eighth-inning grand slam to Matt Szczur in that game, sending Atlanta to its ninth loss in 10 games. Saturday's game was rained out.
The 31-year-old Boifacio was designated for assignment on the final day of spring training, then signed to a minor league deal. The switch hitter was hitting .333 with 10 stolen bases in 16 games for Gwinnett.