Toronto designated right-handed pitcher Esmil Rogers to triple-A Buffalo to make space for Reimold on the Blue Jays roster.
Reimold was hurt running the bases in an 8-5 win over the Tampa Bay Rays on July 11.
Toronto claimed Reimold off waivers on July 6. He has played in just 56 major-league games since 2012 after a second spine-fusion operation.
He has a .333 batting average in four games with the Blue Jays.
Rogers has a 6.97 earned-run average with 21 strikeouts over 20.2 innings of relief for Toronto this season.