Alan Shearer noticed that Pep Guardiola was upset with what one Manchester City player did during his side’s 2-1 defeat to Manchester United. Kyle Walker felt the disappointing result was not down to the Spaniard in any way, shape or form and the players instead. After the FA Cup final, Pep Guardiola shifted the blame from the players and took it upon himself for his side’s defeat — admitting his tactics were not the best. Shearer says Guardiola was upset with one City player against Man UnitedBut Guardiola looked visibly perplexed in the 48 minute of the contest. Rodri took a shot from behind…