Pep Guardiola and Leonardo Jardim were up and down from their seats in the dugout, trying to get messages to their players but ultimately powerless to exert any control in a chaotic game that was unfolding before them. Guardiola ‘s Manchester City and Jardim ‘s Monaco served up a spectacular Champions League match on Tuesday, a dizzying eight-goal thriller that had everything: stunning goals, woeful defending, exquisite build-up play, a missed penalty, refereeing controversies.