The Auckland club have lost their fourth consecutive match of the NRL season, falling to the Newcastle Knights 36-18 at Mount Smart Stadium.
The Warriors were coming off a 1-point defeat to Melbourne on Anzac Day, which came with several key players out.
Kearney says considering that, it's a disappointing result, especially in a match they were well-prepared for.
He says they studied how the Knights played and knew what they had to do, but they didn't do it.
The Parramatta Eels have come from behind to beat the St George Illawarra Dragons 32-18 in west Sydney.
NRL COVERAGE POWERED BY MACHINERY HOUSE - IN A LEAGUE OF THEIR OWN.
