Hoover, who was acquired from the Braves for third baseman Juan Francisco on April 1, was 1-0 with a 3.00 ERA during a mostly impressive 17 games for the Reds earlier this season. In 30 appearances overall for Louisville, Hoover was 4-0 with a 1.22 ERA with 13 saves in 14 chances.
"I'm happy with how I've pitched," Hoover said. "I've always said you have to get the hitters out, no matter what level you're at. I tried to maintain the same outlook and mindset I've had all year. I'm throwing strikes and not putting guys on base."
Hoover made his big league debut on April 25 and feels he can benefit from the experience of his first promotion.
"It helps a lot," Hoover said. "Now I have an actual relationship with some of the guys that are up here. I've felt like they accepted me as part of the team. I'm by no means established. We still have a long ways for that, but it's a little more comfortable atmosphere the second time."