The Rays recalled Sterner from Triple-A Durham on Wednesday, Ryan Bass of Bally Sports Sun reports.
He will take the roster spot vacated by Aaron Civale, who has been traded to the Brewers. Sterner has made two appearances out of the Rays' bullpen this season, allowing two runs (one earned) with a 4:1 K:BB over four innings. He'll be used in low-leverage spots.