From the Garafolo report:
The sources said the NFL offered Browner the chance to accept his suspension now, sit out the rest of this season, remain suspended through the offseason and be eligible for reinstatement at the start of next October, when the 2014 regular season is still in its first few weeks. That would have allowed Browner to return to action well before December, which is how long he’ll sit out if he loses his appeal in the coming weeks.
As has been reported by several outlets, including the Seattle Times, Browner contests that he shouldn’t be considered a Stage 3 offender under the NFL’s substance abuse policy.
Browner is also claiming that the urine collector “used a damaged cup and then poured his urine from that cup into another one”, although the collector will not have to testify at his appeals hearing, according to the Fox Sports report.
Browner has been ruled out for the Seattle Seahawks game against NFC West rival San Francisco on Sunday with an injured groin.