Former Arsenal defender Sol Campbell believes he is noticing some complacency in Virgil Van Dijk.
The Netherlands and Liverpool man has set such high standards in the past two seasons, but he has struggled so far this term.
The Dutchman was particularly poor against Aston Villa as his team were thumped 7-2 away from home in the Premier League.
And Campbell has no doubt regarding Van Dijk's quality, but believes the player could be a little complacent, which is leading to errors.
He told The Athletic: "I know Van Dijk struggled in the Villa game, but he stands out these days because he's head and shoulders above everyone else, which makes me wonder if that is hampering him at the same time.
"He's the complete player in that position and has made it look easy, but maybe he's not been challenged enough and then, like a cricketer being done by a slower ball, he's come unstuck."
