In a mid-season switch of clubs he swapped struggling Charlton for promotion-chasing Swansea, where he joined close friend Guehi and the pair’s England Under-17 manager Steve Cooper. With the Swans, Gallagher dramatically secured a play-off spot on the final day of the regular season but the Welshmen were beaten in the semi-finals by Brentford.
Those exploits in the second tier earned the England Under-21 international a Premier League move last summer with West Brom, where he was a regular in midfield. Despite the Baggies’ struggles, first under Slaven Bilic and then Sam Allardyce, Gallagher played 2,683 minutes of football and won the Young Player of the Year award for a club that were ultimately relegated.
After returning for pre-season under Thomas Tuchel and featuring in friendlies against Peterborough United and Bournemouth, the youngster now heads across the capital for a season at Selhurst Park.
Palace finished 14th last term and begin their new campaign at Stamford Bridge against Chelsea, although Premier League rules mean Gallagher will not be eligible to face his parent club. His debut could therefore come at home to Brentford the following weekend.