Martinez (1-3) took the loss Thursday against the Red Sox after surrendering four runs on seven hits and two walks over five innings. He struck out four.
Martinez has gone at least five innings in all seven of his outings this season, but he's been unremarkable in almost all of those appearances, turning in only three quality starts. With Tyson Ross (shoulder) set to make what could be his final rehab start with Triple-A Round Rock on Monday before being activated from the disabled list, Martinez or A.J. Griffin could soon find himself on the outs for a rotation spot.