Tom McGill joined Albion at 14-years-old and has represented England at Under-17 level.
He progressed through the club's youth ranks, before joining the under-23 squad for the 2018/19 campaign.
The goalkeeper made over 30 appearances for Albion's under-18s in the Premier League South, and made a loan move to Greenwich Borough during his first season as an under-23 squad member.
McGill made his Premier League 2 Division 1 debut against Manchester City at the Academy Stadium, making a number of important stops and keeping a clean sheet in a 1-0 victory.
Loans with Basingstoke Town and Crawley Town would follow, the latter for which he would make his professional debut as a substitute in a League Two match against Walsall.
McGill learning from Sanchez and Steele
Young keeper has been in good form for the under-23s this season.
Albion's transfer window in full
We take a look at all the deals after the transfer window closed on Monday.
McGill is fit again after FA Cup knockout
Albion's on-loan goalkeeper on a dramatic afternoon at Torquay - and missing nine goals!