Manager Lloyd McClendon said the youngster has been "a pleasant surprise" since being called up on June 2 and deserved a better fate than his final line of four runs on seven hits in 7 1/3 innings.
"I thought he was outstanding," McClendon said. "He did a tremendous job for us. He settled down after that shaky second inning and really gave us quality innings."
The 25-year-old is now 1-2 with a 2.