Ball was disappointed by the result, but hugely encouraged by the performance of his players in front of the watching owner Ellis Short.
He said: "That's something that whenever you come away from the Stadium of Light, no matter who is in charge, whatever the club, we have always got to see that.
"That's something that I would drum into the players in future, we must see that all the time.
"People must go away from here, irrespective of what happens, and away from home as well knowing full well that their team has put in a shift, and today, they can say that."
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