Manager Fredi Gonzalez said he wanted to have Tim Hudson and Mike Minor available in case starter Kris Medlen had unexpected problems in the bullpen.
Right-hander Cristhian Martinez, who appeared in 54 games and often was effective in long relief, was not on the 25-man roster. Joining closer Craig Kimbrel in the bullpen were left-handers Luis Avilan, Eric O'Flaherty and Jonny Venters and right-handers Chad Durbin and Cory Gearrin.
Catcher David Ross was expected to start instead of Brian McCann, who has a sore shoulder and sore knee. A third catcher, J.C. Boscan, also was on the roster.
The roster included eight infielders and five outfielders.