Gray is out of the lineup for Wednesday's game against the Tigers.
The left-handed-hitting Gray will take a seat for the second time in three games while the Twins face off against another left-handed starting pitcher (Framber Valdez). Orlando Arcia will get the nod at shortstop in place of Gray, who is also facing competition for reps at the position from Ryan Kreidler since Brooks Lee shifted over to third base on a full-time basis a few weeks ago.