"The little I know him from last year and all this year, he's going to be OK," Braves manager Fredi Gonzalez said. "He's going to use these last two outings as an experience and a builder and keep going forward."
Delgado, who had a 2.83 ERA in seven spot starts last year, hasn't been nearly as effective as a regular member of the rotation this year, posting a 6.30 ERA in four outings.
Most alarming, the right-hander has given up nine runs in 9 2/3 innings while losing his last two starts. He will face the Phillies on Thursday in the conclusion of the Braves' homestand.
"He needs to make some adjustments," Gonzalez said. "For me, it's all about him getting ahead in the count."
Julio Teheran, who lost out to Delgado in a Spring Training battle for a rotation spot, is 2-1 with a 3.78 ERA in four starts with Triple-A Gwinnett. But Teheran lasted just 4 1/3 innings in his last outing, giving up seven hits and four runs.