"I thought Donn threw the ball fine," said Padres manager Bud Black. "He kept the ball down and got his grounders. His sinker was moving, which for a lot a sinker ballers here in Arizona, is not easy. But he had consistent movement. He whipped out a couple of good breaking balls."
Roach had been trying to diversify his pitch arsenal to give hitters more than his plus-sinker to look at. He's also been more aggressive early in the count, mixing in his curveball more as spring has rolled on.
Roach also benefited greatly from a conversation earlier in camp with former Padres Cy Young Award winning pitcher Randy Jones (1976), who was a depended greatly on the sinker in his career.
"Most of the conversations were of a less-is-more mentality," Roach said. "When I try to do too much [with the sinker] my arm doesn't get out front and [the ball] flattens out. It will still get movement but doesn't get that depth and sink that I need to succeed.
"I just need to have trust in my ability to throw the sinker and let it work."
One of Roach's strikeouts Thursday was the result of a curveball.
"I'm using my curveball more than I have in the past and I think it's been good for me. I have thrown several good ones and I'm comfortable using it," Roach said.
Corey Brock is a reporter for MLB.com. Keep track of @FollowThePadres on Twitter. This story was not subject to the approval of Major League Baseball or its clubs.