Isaiah joined Boro from Tooting & Mitcham in May 2019.
The winger linked up with our Under-23 side, and was the Premier League 2 Player of the Month for December that year.
The following month, he joined Scottish side St Johnstone on loan until the end of the season.
Isaiah was introduced to the first team set-up by Neil Warnock, and travelled with the senior side on several occasions in the 2020/21 season. He also signed a new long-term contract with the club.
The youngster made his English professional debut as a late substitute away to Brentford in the FA Cup in January 2021.
