Diaz is absent from the lineup for Wednesday's game against Colorado, Ryan Bass of Rays.tv reports.
After going 2-for-5 with a double, two runs scored, a walk and a stolen base in Tuesday's 9-7 win in 11 innings, Diaz will get some rest for a Wednesday matinee game. Jonathan Aranda will slot in as the Rays' designated hitter in Diaz's stead and will bat second.