Gutierrez (0-1) took the loss Saturday, allowing two runs on six hits and two walks over 4.1 innings as the Reds fell 2-1 to Atlanta. He struck out four.
It wasn't a particularly sharp season debut for Gutierrez, who threw 45 of 76 pitches for strikes, but the Cincinnati offense also gave him little support. The 26-year-old right-hander could have a hard time hanging onto his rotation spot this year once everyone is healthy with top prospects Hunter Greene and Nick Lodolo getting looks, and Gutierrez is facing a tough matchup in his next scheduled start Friday on the road against the Dodgers.