Reds pitching coach Mack Jenkins was on hand to watch the outing and relayed a positive report to manager Bryan Price.
"He showed good velocity, a good slider, he threw a couple of changeups," Price said. "Sounds like he came out of it well. I haven't heard how he felt about it today coming back to the ballpark, but I think everything was very positive."
DeSclafani, 27, has been a key cog of the Reds' rotation in his two seasons since they acquired the righty from Miami for Mat Latos. His 3.74 ERA over 51 starts was the lowest among any Cincinnati pitcher with at least 25 starts from 2015-16.