Sampson appears to be the favorite to start Sunday's game against the Pirates, MLB.com's Mark Sheldon reports.
The Reds are leaning toward pushing Dan Straily's next start from Sunday to Monday after he went eight innings in Tuesday's outing. Sampson figured to get a start at some point either this weekend or early next week due to Saturday's doubleheader, and it sounds like it will be Sunday. The 25-year-old righty has a 5.82 ERA in 60.1 career innings as a starter in the big leagues.