It has been a rough week in Buffalo.
Earlier this week it was announced that Bills defensive tackle Marcell Dareus had been suspended for four games due to a violation of the league's substance abuse policy. Joe Buscaglia of WKBW reported that the suspension was due to a missed test, not a failed test, but that does not mean Dareus has been clean. Today he issued a terse statement saying that he was entering a rehab facility immediately. He gave no indication when he would be back. Dareus signed a $100-plus million extension after two excellent years in 2013 and 2014, but then regressed last season. That extension doesn't actually kick in until this year, and the contract included no protection against possible suspensions. That means Dareus will be out game checks for every game he misses, but will get to keep all his bonus money.
In other news, running back Karlos Williams was released today after showing up to training camp some 30 pounds heavier than his listed playing weight, then drawing his own four-game suspension for substance abuse. Williams had reportedly fallen behind Mike Gillislee, Jonathan Williams, and Reggie Bush on Buffalo's depth chart. It's a surprising fall from grace for one of 2015's most electrifying rookies -- Williams' rushing DVOA of 30.4% would have been first in the league last year, but he fell seven carries short of the 100 needed to qualify for our leaderboards.