“I’m going to get my head down, work hard and when I get the opportunity I’ll show what I can do."
Born in Ghana, Cofie turned professional with Manchester United and featured for England Under 17s before heading out on loan to United’s affiliate club, Royal Antwerp.
Reds Manager David Flitcroft, also speaking to Barnsley Player, added, "I've seen him when he was at Burnley as a kid. He's a player of immense potential and immense talent.
"I don't think he'll be ready for the start of the season. There's bags of potential there.
"Once we'd evaluated him over the week's training, the decision to sign him was easy."
See more from John Cofie on Barnsley Player.