Swansea City head coach Luke Williams says their performance in defeat at Middlesbrough was "completely unacceptable".
Emmanuel Latte Lath’s brace handed Boro all three points on Teesside to leave Swansea winless in their last three outings.
It follows on from their draw with Sheffield Wednesday and the defeat to QPR on Easter Monday.
In his post-match press conference, Williams said in no uncertain terms that this type of display will not be tolerated, adding it must not be repeated. He also pointed to the efforts of the Jack Army, who travelled all the way to the Riverside to be rewarded with an insipid showing from the away team.
“The way we played today was unacceptable,” he said.
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READ MORE: Latte Lath brace sees off Swansea City as Middlesbrough ease to victory
“It was completely unacceptable, it was lacking in energy and conviction. We concede two ridiculous goals, we showed nowhere near enough for our supporters to watch that and be happy with what they saw.
“We had nothing. We got players into unmarked positions in the box, the number of times we get close and overhit a cross or make a bad touch. It’s just sloppiness, there is not enough focus or concentration.
“We did not turn up. Think of the supporters who have travelled up here, excited to come and see their side in this stadium and we produce that. It’s absolutely brutal.
“This is a big football club, we are one division away from the Premier League. We cannot play football like that again, what would be the point of that?
“We have to be better than that in the games ahead, it better be blood and thunder.”
Swansea lost Josh Tymon to injury during the opening 45 minutes but the head coach hopes the knock he suffered won't keep the full-back out for too long.
“I think it was a contact injury as he got kicked, so hopefully it is not a ligament injury or anything like this,” added Williams.
“He is tough, so I hope he is going to come back really quick. He is a guy who we miss a lot when he is not on the pitch.”
Swansea welcome Stoke City to the Swansea.com Stadium on Wednesday.
