Hoffman, who was not available to pitch for the two-game series here, called the session productive but remains unsure of his status for Milwaukee's three-game series at Minnesota, which starts Friday.
"The last thing I want to do is go into a game that is important again and not have all your bullets," Hoffman said. "We'll worry about tomorrow when we get there. Maybe [Peterson] has got a plan and we're going to do this a couple times. We didn't discuss that the other day. We discussed what we're going to do today."
The owner of 596 career saves, Hoffman has been unable to close the door five times in 10 opportunities this season, culminating in Tuesday's appearance in Cincinnati, when he failed to retire any of the five batters he faced. Hoffman's ERA stands at 13.15.
"I feel like I'm letting my ballclub down," Hoffman said. "Not being available yesterday and today is putting a strain on the bullpen. As much as you want to look at getting some things done, my concern is that I'm putting more of a workload on the bullpen.
"I'm almost more embarrassed by it, to be honest with you. [I] just want to get back on track."