'Lost his head!' - Shane Duffy shoves teammate Rob Sanchez in heated exchange during Burnley first half horror
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Brighton produced a poor display in the first half and as Burnley deservedly took a 2-0 lead.
Sean Dyche's relegation strugglers went ahead in the 21st minute as Netherlands striker Wout Weghorst claimed his first goal for the club.
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Hide AdAaron Lennon released Connor Roberts down the right and his cut back was clinically swept home by January signing Weghorst.
The Clarets had earlier struck the crossbar through Roberts.
The Clarets doubled their advantage five minutes before half-time.
Brighton failed to deal with a long ball forward, Weghorst got the better of Duffy, leading to Josh Brownhill sending a low, deflected effort beyond goalkeeper Robert Sanchez.
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Hide AdPrior to the goal, Duffy - in for suspended skipper Lewis Dunk - clashed with his own goalkeeper Sanchez.
Sanchez screamed at Duffy who promptly pushed his keeper in the chest after they got in each other's way when defending a ball into the box.
It was an unsavoury incident - one not often seen by Brighton players - and served to sum up the frustration of a dreadful first half at the Amex.
Here's how Brighton supporters responded: