Bob Bradley promised to fight on as Swansea manager after the 4-1 Premier League home defeat to West Ham left the club deep in relegation trouble.
The 58-year-old American had said before the West Ham game that his future might rest on the next two matches.
And angry supporters have started to turn on Bradley, as the Swans slumped to the seventh defeat of his 11-game reign, calling for the board to sack the former United States manager.
"It was a tough afternoon in all ways," Bradley said after a defeat that leaves Swansea four points from the safety mark.