The on-loan Trabzonspor fullback impressed in the 1-0 reverse.
"To play my first game at the Stadium of Light was a great experience for me." Celustka told safc.com. "It was packed with fans and they were very loud.
"On the pitch the players can feel them and with their backing we create chances; we do feel their support.
"It was unfortunate to concede the goal the way in which we did, as it's not good to concede from set pieces; we need to do better in those situations.
"We must continue the hard work and make progress as a team."
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