NFL news roundup: Vikings' Jamal Adams knee injury is 'not good'; Texans sign QB

Minnesota Vikings safety Jamal Adams suffered a knee injury described as 'not good,' raising concerns about his availability going forward. The Houston Texans also made a move at the quarterback position by signing a new QB, though specific details about the player were not included in the excerpt. Both transactions are part of the latest NFL news roundup covered by NFL.com.