Lynch and Cox are highly thought of by manager Dean Wilkins

Midfielder Cox, 19, has put pen to paper on a three-year deal and centre-back Lynch, also 19, has signed a four-year extension.

Boss Dean Wilkins was delighted that the duo, who both came up through Albion's youth system, have prolonged their stay with the club.

Wilkins told the club website: "Joel and Dean both had promising first seasons and we wanted to reflect that."