Reds bullpen.
At this point, they obviously have to win the home series vs the Mets (winner of that series wins the season series and tie break), and with the way the Mets have been playing, the Braves likely need to do no worse than 8-3 to end the season (with the Mets going 6-5, so basically the reverse of the way the two teams have been playing the last month).
Possible? Sure. Likely at this point? Probably not.