A journalist has revealed that Pep Guardiola was absolutely furious with one of his Manchester City players during the first half of their FA Cup final clash against Manchester United. After beating the Red Devils home and away in the recent Premier League campaign with an aggregate score of 6-1, the two Manchester sides faced off against each other in the FA Cup final for their final match of the season. The first half saw the Blues concede two goals from Alejandro Garnacho and Kobbie Mainoo. In addition to that, one journalist spotted something that Guardiola did on the touchline to one of h…