Date of birth
Jack arrived at Oakwell from Glasgow giants Celtic in October 2020, becoming our fourth signing of the new campaign.
The Scottish youth international, who scored on his debut for the Parkhead club, had a loan spell with League Two outfit Forest Green Rovers during the 19/20 season, where he also netted in his first appearance.
After signing for Barnsley, Jack joined Stevenage on loan until the end of the 20/21 campaign.
He was back on the move in the summer of 2021, when rejoining former club Forest Green on a season-long loan deal.