Jamie Carragher has dismissed Erik ten Hag’s explanation for benching Matthijs de Ligt and Lisandro Martinez in Manchester United’s match against Aston Villa. The Sky Sports commentator rejected Ten Hag’s claim of rotation, asserting the players were dropped. Ten Hag had stated pre-match: “It’s just rotation. We’ve so much games to cover, so we have to bring them all in.” However, Carragher retorted: “You don’t rotate centre-backs. They’ve been dropped.” The decision to bench the defenders, who struggled in the midweek draw with FC Porto, has raised eyebrows among fans and pundits alike. Forme…