'Clear penalty': Mourinho claims referee made mistake booking Herrera for diving

Manchester United manager Jose Mourinho claimed his side were denied a "clear penalty" as they lost 2-1 to Manchester City.
Goals from David Silva and Nicolas Otamendi gave City a 14th straight Premier League win and increased their lead at the top to 11 points, but Mourinho felt his side should have been awarded a spot-kick when Ander Hererra went down under a challenge from Otamendi.