Robbie is a promising left sided defender who is making good progress through the Academy ranks.
A part of the hugely successful group known at the Academy as the 'Dream Team', Robbie was the first to be moved up to the u18 group on a regular basis.
With a few defensive injuries to contend with, John Owens' side needed some re-enforcements, and Threlfall was promoted from Dave Shannon's u16 group.
Robbie has played left back and centre half, and is a good competitor who is comfortable on the ball.