The Reds contacted Mercker about returning to the team for the third time in his long career.
"I have heard from the Reds, and I'm not looking to break their bank," Mercker said. "We haven't talked money because it hasn't gotten that far.
"But, yes, I'd love to pitch again for the Reds," he added. "Just tell them to pay me a decent stipend and I'd like a two-year deal before I shut it down, call it a career."
Mercker was a valuable part of the Chicago Cubs bullpen last year. The veteran left-hander was 3-1 with a 2.55 earned run average in 71 appearances.
Mercker was with the Reds in 1997 and in 2003 before he was part of the Bullpen Massacre that scattered him and fellow relief pitchers Scott Williamson, Scott Sullivan, Felix Heredia and Gabe White to various corners of the baseball map.