A league source told NFL Media Insider Ian Rapoport on Wednesday that Browner's suspension has escalated from one year to "indefinitely."
Per Rapoport, Browner argued that he missed drug tests while not in the NFL. That appeal was denied because the league had notified him of the tests in writing.
Although Browner earned a Pro Bowl nod as recently as 2011, his play had fallen off in the eight games he played this season. The "Legion of Boom" secondary hasn't missed a beat in his absence. In fact, the unit actually has played two of its most dominant games of the season in victories over the New Orleans Saints and New York Giants in the last three weeks.
Browner took to Twitter on Wednesday, accepting responsibility for his actions but saying he believes in his innocence.