The Frenchman praised his new team-mate in a post-match interview with The Mirror, citing his work-rate and aggression as key assets that will enhance the Reds' squad.
But the Brazilian isn’t the only tenacious recruit that Erik ten Hag has added to his squad in the summer transfer window.
The Dutchman has said that “when you want to make a winning team, you need more leaders,” and the players he has brought in so far – Tyrell Malacia, Christian Eriksen, Lisandro Martinez and now Casemiro – fit a very specific profile.
He may only be 23 years of age but Malacia is not one to shy away from responsibility, demonstrating that on Monday night as he marshalled Mohamed Salah well and revelled in big tackles and important blocks.