Diaz entered Friday's extra-inning win over the Tigers as a pinch hitter in the bottom of the ninth and delivered a two-run single in his only at-bat.
Diaz's timely knock plated Manuel Margot and Francisco Mejia to close the Rays' deficit to 4-3 at the time. The 29-year-old's clutch hitting was an extension of a favorable September pattern, as he's now driven in multiple runs on three occasions during the month on his way to 11 RBI over 13 games.