Perez (1-0) picked up the win Friday night, with the Reds scoring a run in the 10th inning after he got the last two outs in the ninth.
Perez gives the Reds yet another high-velocity reliever, and he's throwing harder now than he did with the Astros by nearly two mph. He walked a batter on Friday night, and that's been the concern with him in the past -- he walked six batters in 6.1 frames with Houston last year.