Twins pitcher Brad Radke has a stress fracture in his right shoulder, an injury Minnesota doesn't necessarily think will end his season. Radke's injury, to the glenoid area of the shoulder joint, is a rare condition and was not detected in previous exams, the Twins said Friday. Dr. Dan Buss recommended that he not throw for two to three weeks. Radke is 12-9 with a 4.46 ERA and made his last appearance Aug. 25, when he left a start against the White Sox after two innings.