It’s common knowledge that players should not be placing their hands on a referee during the game, particularly whilst screaming expletives at them.

But Liverpool’s Raheem Sterling appeared to cross the line with referee Howard Webb at the Emirates on Sunday when he placed a hand on the official’s chest, prompting a priceless reaction from the controversial official.

Howard couldn’t believe the youngster’s actions and brushed his hand off with a look of disbelief and disgust at Sterling’s cheek…