Fogg has been on the 15-day disabled list since June 1 with lumbar back spasms, but said he has fully recovered. Asked when he would return, Fogg was clueless.
"You're asking the wrong guy," Fogg said. "I have no idea, I really don't. I don't know what's going on. I just came here to work out. I've been over [the injury] for a long time. It's been a month. I don't know how along ago I went on the DL. It was a long time ago."
Fogg's rehab assignment can last a maximum of 30 days, which means the Reds have until July 16 to make a roster move. However, there doesn't appear to be room for him in the rotation right now.
Fogg started the season in the rotation, but was sent to the bullpen in favor of Matt Belisle after three poor starts. He pitched once more as a starter before going on the DL.
The Reds called up Homer Bailey to fill the No. 5 starter spot, but Bailey didn't last. Daryl Thompson is the fourth player to pitch in the No. 5 spot this season and has been solid through his first two outings.
Fogg has pitched well in his last three Minor League rehab starts -- one with Class A Sarasota and two more with Triple-A Louisville. He gave up just two runs in 8 2/3 innings in a start for Sarasota on June 21, pitched a complete game with Louisville on June 26 and went eight innings on Tuesday without giving up a run.
He's thrown 100 pitches in each of his past four rehab starts.
"I feel fine,"Fogg said. "I feel great. I've thrown 100 pitches four starts in a row; I don't think I can get much more stretched out than that."
Fogg was signed to a one-year contract worth $400,000 in February. It could be worth up to $1 million with incentives.
Brandon Harris is an associate reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.