Spiers is expected to either start or work as the bulk reliever Tuesday against the Blue Jays, Charlie Goldsmith of The Cincinnati Enquirer reports.
The Reds have yet to name Spiers the starter, as Goldsmith notes there's a possibility the club uses an opener for the first inning or two before turning to the 26-year-old right-hander. Spiers worked in a bulk reliever role during his last appearance Wednesday against the Cardinals, surrendering two runs on six hits while fanning four over 2.2 frames.