Stanek will serve as the Rays' opening pitcher Monday against the Orioles, Marc Topkin of the Tampa Bay Times reports.
The right-hander isn't expected to work more than two innings before giving way to bulk reliever Ryan Yarbrough. Over his 23 turns as an opener this season, Stanek has posted a 2.25 ERA in 36 innings while limiting opposing hitters to a .260 wOBA.