Guthrie would've been out of contract this summer, but the Club opted to activate the one-year-option in his previous deal for the 2015/16 season.

The 22-year-old has now signed a new one-year-deal, with again an option of a further year for 2016/17 added in.

Guthrie is looking to cement a regular spot at his favoured centre-back position this season after plying his trade in both that position and left-back over recent years.