Former Manchester United boss Louis van Gaal has taken aim at Manchester City manager Pep Guardiola.
Van Gaal says Guardiola's failure in the Champions League can be easily explained.
He told France Football: "Winning the English league for the second time in a row is fantastic. Guardiola has won all there is to win in England, but the highest level is the Champions. And he has not won it in either City or .
"It is the consequence of being overly concerned about your team's game and not your opponent's. You have to respect your opponent. Guardiola and [Ajax coach Erik] Ten Hag have great teams for their national rivals. But that's all."
