Grayson's View: Sheff Utd FAC (h)
Paul Gallagher was on the mark again to give North End a 19th minute lead with a free kick before Diego De Girolamo equalised for the Blades midway through the second half.
'There was a lot at stake with both teams wanting to get into the next round who both know each other very well," Gryson told pnefc.net.
"Unfortunately we`ve added another game to the schedule, but you`d rather still be in the Cup on Monday night then out of it.
"We started the game extremely well - we were on the front foot, passed the ball well and caused them all sorts of problems."