Manchester United's summer budget could be bolstered by a transfer decision they made last year.
Tahith Chong featured three times for Erik ten Hag during his first pre-season at the club, but was allowed to leave permanently on deadline day a year ago.
Birmingham won the race for his signature when they agreed a £1.45million deal for their former loanee, beating competition from fellow Championship side West Brom, who were pushing to sign him on loan instead.
