The 24-year-old Welshman has only made two appearances with Sunderland since moving from Celtic in the summer.
Bristol City manager Lee Johnson told 'Sky Sports', "He's a quality, young signing who is hungry to play,"
The 24-year-old Welshman has only made two appearances with Sunderland since moving from Celtic in the summer.
Bristol City manager Lee Johnson told 'Sky Sports', "He's a quality, young signing who is hungry to play,"