During Manchester City's shock defeat to Aston Villa last night, Roberto Mancini and Paul Lambert were involved in a dispute on the sidelines.
In the pressure-cooker world of a football manager, things are never far from boiling over.
Here, we take a look at the managers who failed to see eye-to-eye and lost it on the touchline.
Click here or click 'VIEW GALLERY' to launch our guide.
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