West Ham are considering whether to sack Julen Lopetegui following Saturday's heavy defeat at Manchester City.
Hammers sources have denied Lopetegui has already been dismissed but accept the former Real Madrid and Spain coach is under huge pressure.
Lopetegui, 58, was on the brink of being sacked prior to last month's home game with Wolves. But victory in that match triggered a four-game unbeaten run, West Ham's best of the season.
However, a humiliating 5-0 home defeat by Liverpool was followed by a 4-1 loss at Manchester City to leave West Ham 14th in the table, seven points above the relegation zone.