Called on to protect a four-run lead in the ninth inning, Robertson gave up two runs on two hits and one walk over his inning against the Braves on Saturday.
Robertson permitted a two-run homer to Charlie Culberson but finished out the game without further damage to preserve an 8-6 win. The 33-year-old has given up three earned runs in his first two appearances of the season and will need to improve in order to get regular save chances.