League Two side Cambridge United have signed right-back Brad Halliday from Middlesbrough for an undisclosed fee.
The 21-year-old failed to play a first-team match for Boro, but has made a total of 65 appearances during loans at York, Hartlepool and Accrington.
He played alongside current U's winger Piero Mingoia at Accrington last term, helping Stanley reach the League Two play-offs.
Halliday has signed a "long-term deal" with Shaun Derry's side.
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