Vikings RB Dalvin Cook (ankle) missed practice again on Thursday. He claims he didn't aggravate his ankle injury last week, but he clearly wasn't anywhere close to 100% in that one. It'd sure make sense for the Vikings to hold him out of a game vs. the Lions on Sunday that they can win without him. We'll get another update on Cook tomorrow. Alexander Mattison will be a fantasy RB1 if Cook is out.