Pep Guardiola sent off vs Liverpool for telling ref to 'shut his mouth'
![Pep Guardiola sent off vs Liverpool for telling ref to 'shut his mouth'](http://i.dailymail.co.uk/i/newpix/2018/04/11/15/4B06742200000578-0-image-m-115_1523457818766.jpg)
The City boss — charged by Uefa for improper conduct — insisted after his side went out to Liverpool in the Champions League quarter-finals that he had not been rude to the match official.