The Rangers transferred Gray (foot) to the 60-day injured list Wednesday.
The Rangers placed Gray (foot) on the 15-day injured list Tuesday.
Gray will be sidelined for the remainder of the season due to neuroma in his foot, Jeff Wilson of AllDLLS.com reports.
The Rangers list Gray as their scheduled starter for Saturday's game in Cleveland.
Gray allowed one run on two hits and one walk while striking out two over two relief innings in Tuesday's 4-0 loss to Pittsburgh.
The Rangers are hopeful that Gray (groin) will be ready for activation from the 15-day injured list Tuesday, Evan Grant of the Dallas Morning News reports.
Manager Bruce Bochy said Saturday that Gray (groin) won't require a minor-league rehab assignment, Jeff Wilson of RangersToday.com reports.
Gray (groin) threw a bullpen session Wednesday, Shawn McFarland of The Dallas Morning News reports.
Rangers manager Bruce Bochy said Monday that Gray (groin) could miss up to a month of action, Evan Grant of The Dallas Morning News reports.
The Rangers placed Gray on the 15-day injured list Monday with a right groin strain.