Adrian Peterson rushed for 140 yards and two touchdowns as the Vikings edged the Steelers 34-27 at Wembley Stadium in London. Matt Cassel started in place of the injured Christian Ponder and threw for 248 yards and two touchdowns, both to Greg Jennings. Jennings ended with three grabs for 92 yards for the Vikings, who improved to 1-and-3.
Italy's highest court has overturned the murder conviction against Amanda Knox, bringing to a definitive end the high-profile case.
Six world powers and Iran move closer to a deal, but there are still major disagreements.
A look at some of the week's biggest headlines and the stories you may have missed.