Antonio Conte said it was "incredible" that Jordi Amat was not sent off for persistent fouling of Diego Costa after Swansea City held Chelsea to a 2-2 draw at the Liberty Stadium on Sunday.
Costa found himself at the centre of the action in South Wales, scoring two goals, earning a yellow card for a late tackle on Federico Fernandez and becoming embroiled in a running battle with Amat, who was booked after a clash of heads with the striker in the 48th minute.
The Blues broke the deadlock after just 18 minutes when Costa swept in from the edge of the penalty area, but two goals in three second-half minutes from Gylfi Sigurdsson and Leroy Fer -- the former a penalty conceded by Thibaut Courtois and the latter coming after Fer appeared to foul Gary Cahill -- turned the match on its head, before Costa's 81st-minute overhead kick salvaged a draw for the visitors.