Carragher noted that the Netherlands international was not aggressive enough in his defensive duties.
Newsonline Manchester United handed Liverpool their first league defeat of 2022, with goals from Jadon Sancho and Marcus Rashford.
Van Dijk did not move when Manchester United struck the first goal as could not stop Sancho after Milner had gone on the ground to make a block.
“The one thing that I do sometimes think is does he lack a bit of intensity at certain times,” he said on Sky Sports.
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He went further to recall that during the Champions League final between Liverpool and Real Madrid back in May, the Netherlands captain was just hanging his leg out as he watched the ball being headed into his net.
“A defender who’s always on the floor, that’s not a good sign,” the Liverpool legend warned, also recalling how he gave the penalty away at Fulham as well.
“You can’t just stand there, he almost made himself smaller by the way he stood.”