Watmore joined the SPL side on loan until the end of the season on transfer deadline day – just six months after the 19-year-old arrived on Wearside from non-league Altrincham.
Terry Butcher: “Duncan looks like he has won a competition to be here – he looks so young!
“He’s 19, but if you look at him at first you think that’s the mascot having a warm-up!
“When you see him play though he’s an incredible player.
“Duncan attacks full-backs. He gets them on the wrong foot and goes past them. I don’t know how he does it sometimes, but he does.
“He delivers a great ball as well, and is all-energy. He lifts you off your seat, as simple as that.
“He makes me want to jump up in the air because he’s that different to what we have.
“Duncan can tackle and get stuck in, but he’s also gifted on the ball. We’re lucky to have got him because other clubs definitely wanted him.”