Middlesbrough have handed long-term professional contracts to teenagers Luke Williams and Bruno Pilatos.
Williams, 16, and Pilatos, 17, were both promoted to the first-team set-up last season by manager Gordon Strachan.
Forward Williams was handed his debut, while Pilatos was an unused substitute on three occasions.
Both England youth internationals have both now landed four-year contracts.
Joining Williams and Pilatos in signing on long-term deals are fellow internationals David Atkinson and Ben Gibson - the nephew of Boro chairman Steve.
17-year-old Matthew Dolan has agreed a four-year deal while Paul Weldon has signed a two-year contract.
Boro also confirmed the release of Ashley Corker, James Cronesberry, Gary Martin, Derrik Bassi and Danny Hawkins.