Martinez will be available out of the bullpen Saturday and Sunday, Evan Grant of The Dallas Morning News reports.
The Rangers are in need of some length after Dillon Gee worked four innings Friday, and Martinez will be the one ticketed for relief duty, at least temporarily. There's still a chance Martinez could start Tuesday if he is not needed out of the bullpen in the coming days, but otherwise, the team will likely be forced to dip into the minor-league system for an arm. Martinez was knocked around for five runs on six hits (including three homers) over 4.1 innings in his last start.