Ondrej Celustka hopes his spell with Sunderland gets him a move away from Trabzonspor.
But there is no prospect of Sunderland making a permanent move for Celustka.
"After my experience in England and playing in the Premier League, to go back to Trabzonspor now would be a backwards step," Celustka told the Czech press.
"Going there three years ago was very different.
"Therefore, I either want to stay in England or go to Germany."
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