Barry Robson is to leave Middlesbrough in the summer having lined up a move to join Major League Soccer side Vancouver Whitecaps.
Middlesbrough defender Stephen McManus has joined Bristol City on loan until the end of the season.
Middlesbrough captain Matthew Bates should be fit to face Nottingham Forest after recovering from illness.
Goals from Jack Colback and Stephane Sessegnon, in extra time, gave Sunderland a hard fought 2-1 win over North-East rivals Middlesbrough in their FA Cup fourth round replay on Wednesday.
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