Diaz isn't in the lineup for Tuesday's game against the Blue Jays, Neil Solondz of the Rays Radio Network reports.
Diaz went 2-for-13 with a home run and two RBI in the weekend series against Cleveland, capping off a July in which he slashed .330/.413/.511 with 18 RBI and 15 runs. Isaac Paredes will play third base Tuesday while Ji-Man Choi plays first.