Joe Hart is expecting a difficult night in Ljubljana after Slovenia provided England's toughest test of Euro 2016 qualification.
The Three Lions have won their 2018 World Cup qualifiers in Slovakia and at home to Malta, making them the early Group F leaders.
Gareth Southgate's side continue their campaign in Slovenia on Tuesday as the players resume battle with their most challenging opponents of an otherwise straightforward route to Euro 2016.
The 3-1 comeback win at Wembley and 3-2 triumph in Ljubljana last June were the only times Hart's goal was breached during qualification, so England's number one is expecting a similarly difficult evening.
"It was probably our toughest two games of the group, especially at Wembley," the Torino goalkeeper said.
"They took the lead and it took us a while to get back into it. It was one of those tough internationals.
"I think we then played them in mid-June and Jack [Wilshere] had an amazing game and scored two fantastic goals.
"We ended up really needing Wazza's [Wayne Rooney] cool, calm head to stick the ball away.
"It was a really good win for us and a really good game. We expect the same sort of game on Tuesday night.
"I played against one of their players last Sunday for Fiorentina, Josip Ilicic. He is a strong player with a good left foot.
"They have got some good players and they work well as a group. They have got a fantastic keeper so they are going to be good."