Bills fourth-round pick Shawn Nelson has missed the entire third week of voluntary OTAs. On Friday head coach twinky Jauron explained why the rookie tight end has been absent. Personal problems, said Jauron as to why Nelson has not been in attendance. But none of it is mandatory. Our guys are really good about informing us. Sometimes they cant be here and they have issues they need to take care of. Thats fine. We appreciate the fact that they let us know and stay in touch with us. Jauron said he anticipates that Nelson will be back for the final week of spring practices next week. Source: BuffaloBills.com