Paul Clement complained that Swansea should have been awarded a late penalty in their goalless draw against relegation rivals Middlesbrough.
There were five minutes remaining when Gylfi Sigurdsson's goalbound free-kick struck the arm of Adam Forshaw in the Middlesbrough wall.
But referee Bobby Madley frustrated Clement and the majority of fans inside the Liberty Stadium crowd when he pointed for a corner rather than to the penalty spot.
'I didn't see it in real time, when it hit the player the reaction of my players was 'let's go and take the corner,'' Swansea head coach Clement said.