The France international moved away from Stamford Bridge last summer in a bid to win regular game time after serious injury but knows what goes on behind the scenes at the Blues better than most.
Chelsea showed their faith in him by presenting him with a new six-year deal, and the 23-year-old has lifted the lid on his team-mates there.
“Strong? Gary Cahill. For me, he works for the police," he said. "He's like a policeman, so strong! He doesn't look like much - but when he's angry? Ooh la la, you can feel it. He's stronger than me, definitely.”
Watch the Emoji Game above as Zouma describes who Chelsea's sleepy one is, the funny one and the players who he thinks is on fire.