The Scotland international, 22, has been rewarded for his rapid progress at The Hawthorns, with the deal including a further year's option in the club's favour.

He has been a regular member of Albion's squad during the second half of the campaign and made two Barclays Premier League starts.

decent footballer

Manager Tony Mowbray said: "It is great credit to the boy he has earned a new contract.

"This year he has taken huge strides and has broken into the team. Hopefully it is the start of his journey with Albion and it will be a long and successful one. He is showing he has the potential to be a decent footballer."