Jordan Pickford consulted his water bottle cheat sheet ahead of Mohamed Salah's penalty in the Merseyside derby, but the Everton goalkeeper was unable to prevent the Egyptian giving Liverpool the lead from the spot.
Liverpool were awarded a penalty in the 75th minute at Anfield after Michael Keane was penalised for handling Luis Diaz's cross.
Pickford hoped to be Everton's hero with the goalkeeper aided by a water bottle featuring a sticker, which showed the penalty tendencies of Liverpool's takers.
The England goalkeeper was unable to prevent Salah from giving Liverpool the lead from the spot.