The Rangers have placed starting pitcher Nick Martinez on the 15-day disabled list with discomfort on his left side. Martinez had been scheduled to start Tuesday night. The move is retroactive to July 2.
The team has promoted fellow right-hander Phil Irwin to take his place on the roster.
Martinez has struggled with the injury-plagued Rangers. Only two of his last six outings were quality starts as he compiled a 1-6 record and 5.10 ERA.