We've had some real scraps in the blue half of Merseyside in recent seasons including the Toffees coming back from a 2-0 deficit to draw 2-2 two seasons ago and a 2-1 loss last time around - a certain Louis Saha on target in both of those matches.
"It's a tough game, Everton away," said Harry.
"You don't go there and think 'this is a nailed-on win' because it's a very difficult place to go. You never get an easy game home or away against Everton."
We're looking to bounce back from defeats against Arsenal and United.
"We have had two defeats but in all honesty, yes, we lost at Arsenal but they showed you other night what they are capable of against Milan. That's what they did to us in the second half," added Harry.
"I was pleased with the performance against United, I couldn't have asked for more, we just didn't get the breaks on the day.
"We have not been in bad form. We've just had a couple of setbacks but against very good teams."