Krul knows it will not be easy at St James' Park, with the Potters sure to test him with long balls and Rory Delap's monster throws into the box.
But Krul said: "You have to prepare for everything. Our goalkeeping coach Paul Barron said to me this morning, 'Don't just focus on the throw-ins, it is going to come from everywhere'.
"And every ball is a single ball. Say if you catch nine throw-ins, the 10th is a different ball again, so you just have to stay focused for 90 minutes.
"Am I hard enough to look after myself? Yeah, I have been to the gym. Everyone knows English football.
"It is always kick and rush, they say, but I have to be ready for the knocks and I have to give some to them as well.
"I am lucky we have Andy Carroll who is a great header of the ball and he will be there to help me. I will just have to be prepared for what Stoke throw at me. Everyone knows Stoke's qualities but we just have to concentrate on ours as well."