Brandon Bolden suspended 4 games for violating the NFL's policy on performance enhancing substances. #Patriots— Paul Perillo (@pfwpaul) November 9, 2012Well, this was unexpected. Still, Bolden hasn't practiced since the Seattle game with a knee injury so who knows when he would've come back anyway.The injury coupled with the four game suspension should do a decent job at stunting the running back's growth in an otherwise really solid looking rookie season from Bolden. At this point let's just hope he can find his rhythm again in time for the playoffs. We'll update this post when word comes out on what substance he was caught for, but since it's only four games it's probably something minor (like Adderall).Bolden did have character concerns coming into the draft (he went undrafted).