Russell Martin admits Swansea City must urgently stop the "silly moments" that are costing them so dearly following their 3-0 defeat to Sheffield United.
Goals from Sander Berge, Jack Robinson and former Swansea striker Oli McBurnie earned the Blades an emphatic win over Martin's men at Bramall Lane to ensure the visitors have won just twice in their last 14 league outings.
The away side's defending in south Yorkshire left a lot to be desired at times, and Martin says Paul Heckingbottom's outfit were better at some of the game's "non-negotiables" during the clash between the sides.
