The Daily Mail says Guardiola demanded a journalist to 'look at me' when answering questions surrounding David Moyes' tactics.
Guardiola has forever been irritated at what he perceives to be negativity from English opposition in Europe - particularly Chelsea, who he referenced on Tuesday night - and took barely a minute of his press conference to bemoan the volume of defenders United deployed behind the ball.
The Spaniard's insinuation was that United didn't go for it in front of their own supporters; when asked to elaborate he became confrontational.
"I didn't say that... I didn't say that! I respect my colleague (Moyes). My colleague can play..." but just as the Bayern boss elaborated, he demanded to a journalist: "Look at me when I talk to you. Look at me when I talk to you! I'm trying to explain," before shaking his head.
For breaking stories and all the great banter like us on Facebook: facebook.com/tribalfootball