Sunderland head coach Regis Le Bris says he is happy with a point after a "tough" trip to Deepdale resulted in their second 0-0 draw in four days.
The Black Cats struggled to get into the match with Preston North End on Wednesday as the team towards the bottom of the Championship proved dominant in the first half.
"It was another tough away game against a strong team. We struggled during the first half to apply a high pressure and we conceded many situations," Le Bris told BBC Radio Newcastle.
Le Bris made changes to his frontline in the 62nd minute, introducing Romaine Mundle and Patrick Roberts.