It proved a big day for Fletcher, whose impressive start to his career on Wearside has been interrupted by ankle and shoulder injuries.
He said: "That was the best feeling I've had here personally. I missed the 3-0 game last year, so that was the highlight of my Sunderland career so far.
"I got back early from my ankle and got back early from my shoulder, so it's been a good recovery.
"The dressing room was bouncing afterwards. The music was on and it's been a while since that was the case."
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