The following Reds are currently on the 40-man roster or 60-day Disabled List and "out of options" in 2013, meaning they must clear waivers before being sent to the minors. (Out-of-options players with multi-year deals, like Sean Marshall and Ryan Ludwick are excluded.)
Alfredo Simon
* = also has more than five years of MLB service time entering 2013, meaning they can refuse an optional assignment if they were to clear waivers.