Middlesbrough have signed former Sunderland forward Duncan Watmore on a short-term deal until January.
The 26-year-old left the Black Cats in the summer after making 71 league appearances for the club.
He had been training with Neil Warnock's side for a number of weeks and could now make his debut against Norwich City on Saturday.
"He's done very well in training and he's a smashing lad," Warnock told the club website.
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