Raheem Sterling (Getty Images)
Sterling posted a picture of himself training with his England team-mates at St George's Park, with a tattoo of an assault rifle on the winger's right calf clearly visible.
"We demand he has the tattoo lasered off or covered up with a different tattoo," She told the Sun.
"If he refuses he should be dropped from the England team. He's supposed to be a role model but chooses to glamorise guns."
But Sterling, who helped City win the Premier League title in April and is currently preparing for next month's World Cup, alluded to the tattoo having a "deeper meaning".