Middlesbrough have signed former Arsenal academy defender Christian Burgess on a two-year deal.
Burgess, 20, who had trials with West Ham and Tottenham, was studying history at Birmingham University last season after a spell at Bishop's Stortford.
"I'm really looking forward to the challenge of professional football at Middlesbrough," Burgess said.
"I'm looking forward to getting started and making the most of this chance. This is the opportunity I've wanted."
The defender, who had a trial spell in the Teessiders' development squad last season, will come under the tutelage of first-team manager Tony Mowbray, himself a former central defender.
"I've spoken briefly with Tony and it's nice he has shown some confidence in me," Burgess added.