The White Sox activated Martin (finger) from the 15-day injured list Wednesday, James Fegan of the Chicago Sun-Times reports.
Martin will make his return to the Chicago rotation with a start Wednesday in Houston. The right-hander has been sidelined since mid-August because of a blister on his right middle finger. Martin tossed five scoreless frames in his lone rehab start, but he had posted a 9.95 ERA and 1.63 WHIP in his last five outings before getting hurt.