Middlesbrough's survival hopes suffered a critical blow after Gareth Southgate's side were held 1-1 by Aston Villa at the Riverside.
Tuncay had given Boro hope with a spectacular overhead kick but John Carew's equaliser destroyed the home side's victory hopes.
Boro's talisman Tuncay landed a headed on the roof of the net late on but that was as close as the home side got in the dying minutes.
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