Phil Brown admits he is now facing one of the biggest challenges of his career in attempting to pull Hull away from relegation.
Hull are now just three points above the Barclays Premier League's bottom three after slumping to a 2-1 defeat at home to Blackburn on Sunday.
He said: "It is the biggest test of character of my career, as a manager, and it probably is for the players."
The Tigers' form is the worst in the division having not won in 11 games and only once in their last 18.
Quickfire goals late in the first half from Stephen Warnock, after a Matt Duke blunder, and Keith Andrews proved enough for Rovers despite a late reply from Ian Ashbee.
In an eventful afternoon at the KC Stadium, both sides also had a player sent off and Brown suffered the ire of his star player and the fans after taking off Brazilian playmaker Geovanni.
Brown added: "We have got to try to play above ourselves in the last 11 games, it is as simple as that. If we minimise mistakes between now and the end of the season there is a possibility we will be okay but it has to happen now."
Brown was defiant on the subject of Geovanni, who shook his head on seeing his number and then showed further signs of frustration after taking his seat on the bench early in the second half.
Geovanni, who had been recalled after sitting on the bench for the last two games, has not scored since November.
Brown said: "Geovanni is not bigger than this football club, it is as simple as that. I don't think he was having a positive impact on the game, hence the first touch when he had an opportunity but didn't even get a shot off."
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