Josh Gordon's legal team will argue that his positive marijuana test was caused from secondhand smoke.

Gordon is appealing the NFL's imposition of a yearlong suspension for a positive test for marijuana.

Gordon's legal team will argue that the positive tests are so marginal that they show uncertainty as to whether the test results were truly positive, and even if so, were the result of exposure to secondhand smoke, according to sources familiar with the case.

Gordon's "A" sample tested at 16 nanograms per milliliter, a bare one nanogram per milliliter above the 15-nanogram-per-milliliter threshold, while Gordon's "B" sample -- which should theoretically be consistent with the "A" sample, as it comes from the exact same specimen -- tested at 13.63 ng/ml, lower than the threshold.

With both samples coming from the same specimen test, the results should be consistent.