"I had good changeup command. Really, everything was working pretty well," Guerrieri said, per MLB.com. "The only thing I didn't like was those two walks. I didn't feel very good about that. I just got behind. I fell behind 3-0 to both of those guys. All the guys [whom] I got ahead on, I got out. The name of the game is getting ahead, I guess."

Guerrieri sports a 2.00 ERA and .216 opponents' batting average through six starts. He also has 25 strikeouts to six walks in 27 innings. Guerrieri hasn't logged a lot of innings because the Rays continue to keep the 2011 first-round pick on a strict pitch count.

"I'm still on the five innings/75 pitches rule -- whichever comes first," said Guerrieri, who is considered the Rays' second-best prospect by MLB.com. "I'm OK with it. I was in spring training for an extra week, so some of our guys get to do a little more. They're up to six innings/85 pitches. I ended up at 79 pitches after five today. If I could throw out those first two innings and replace them with good innings, I bet I would have gotten to pitch six. Those first two innings took 40 pitches. If you took those away, I would have been able to go a little bit deeper."