Former USC tailback LenDale White tested positive during an NFL drug test, according to multiple sources, which could affect his stock for today's pro draft. White spoke briefly to a reporter Friday but sounded unconcerned about the situation. "(The NFL) ain't worried about it," he said. "The issue's been addressed." Word of the drug test spread through NFL circles Friday and several sources said the test took place at the Indianapolis predraft combine in late February. "If it's out, it's got to be a combine test," said a source with knowledge of NFL drug testing. "Some teams also give their own tests but those are at individual workouts and no one releases those." The news could not come at a worse time for White, who has not impressed NFL teams since announcing in January he would turn pro. "If this is true, this late before the draft, that will sink him," said an agent who asked not to be identified.