Supporters of the Premier League champions were not best pleased with their manager on social media.
The last thing you need before a big Champions League clash against Barcelona is to lose to a side in the relegation zone of your division. Ah, well that's rather awkward for Manuel Pellegrini, then.
And the Chilean did not get off lightly in terms of criticism after the game. On Twitter, Manchester City fans were far from happy with their manager...
Their first major criticism of the 61-year-old was one many level at Pellegrini on a weekly basis: that his 'broken-record' tactics simply do not work.
But, far from just setting his team up wrong, the Manchester City head coach was also criticised for his in-game substitutions. A goal down to Burnley, Pellegrini took Yaya Toure, David Silva and Edin Dzeko off. Suffice to say those changes didn't have the desired effect.
Where next for Manchester City and, more pertinently, Pellegrini? Is it the end of the line for the Chilean or will he stay on despite what looks almost guaranteed to be a miserly, trophyless campaign?
Here's how City fans reacted to the 61-year-old's tactics and substitutions on Twitter after the Burnley defeat...
Aguero up top silva in behind it's not difficult to see that 2 up top doesn't work! How many times can you say the same every week #mcfc— Mark Phillips (@Captain_5678) March 14, 2015
Two things really. First, stop playing 4-4-2. Playing Silva on the wing is like punching a unicorn... #MCFC— Martin Dean (@marvdeano) March 14, 2015
10 days rest period, full strength team.. Wrong formation, wrong substitutions, wrong style of play. Its time to shape up City. #mcfc— Andrew Hartley (@AndrewHartley_X) March 14, 2015
Think it's time MP went so the new manager has time to work with the squad before the transfer window. Substitutions are very strange! #mcfc— manchester city (@mcfcplanet) March 14, 2015
Said it before Pellegrini has a touch of the Wengers about him stubborn and no thought about the opposition's strengths same tactics. #mcfc— Leighton Royston (@LROYSTON) March 14, 2015