The downfall of Arizona State linebacker Vontaze Burfict added another chapter to its story Wednesday — just one day before the NFL draft begins — as NFL Network contributor and Fox Sports insider Jay Glazer reported that NFL teams were informed this week that Burfict has failed a drug test.

Perhaps no prospect’s draft stock has plummeted more than that of Arizona State linebacker Vontaze Burfict. Despite all the negativity surrounding his game, Burfict remains confident that he can have an impact in the NFL.

Arizona State held its pro day on Friday, but quarterback Brock Osweiler pushed back his workout until the end of the month.

Here in the NFL Scouting Combine press room, high-profile prospects are brought to the podium to speak. Lesser-known players are dropped at smaller tables, set up for more intimate Q&As, so it was curious to see Vontaze Burfict relegated to distant Table 4.

Ron Rivera’s Carolina Panthers need to improve their run defense through this year’s draft.

NFL Network draft analyst Mike Mayock was the man of the hour during a conference call with media from throughout the United States on Wednesday.

Relive two of Sunday’s most dramatic games as they happened, with NFL Replay Tuesday night on NFL Network.