Carlos Carvalhal says confidence in the camp is high following two strong displays on the road.
And as the Owls look forward to a return to Hillsborough on Saturday, the head coach is expecting a tough challenge from in-form Preston.
The Lilywhites’ recent run in the Championship underlines their credentials heading into the S6 clash.
Save back to back defeats by Newcastle in league and cup, Preston have been on a fine run and Carlos said:
“They drew at Brighton, they won at Norwich, they are doing very well in the Championship and especially in the away games.
“We know the opponent, we know what they can do and we are preparing the team.
“We have confidence to the game, our confidence now is higher, we are playing like a team and we wish to continue to play good football and to fight for the three points against a very tough opponent.”
It will be Wednesday’s first fixture on home soil since defeat to Ipswich last month.
Carlos has been delighted with the Owls’ reaction since that reverse and with the fans right behind the team on Saturday, is confident of another strong display.
“I think it is very clear to understand. We reacted very strong after the defeat against Ipswich, we did a fantastic game against Fulham.
“Last game we performed well, won the three points at Wolves and that was important. We did a very solid game but this is a good time to come back here in front of our fans.
“We want them to make a big presence because nobody can beat us at Hillsborough with our fans at 100%, absolutely sure.”