Date of birth
Defender. Luton-born Justin signed a professional contract with the club at the same time as youth team colleague Frankie Musonda in November 2015.
First joined the Hatters in 2005 and along with Musonda, won the Aarau Masters as an Under-11, beating Bayern Munich in the final.
Made his senior debut as a substitute against Exeter on the final day of the 2015-16 season and has gone onto make 39 first team appearances in 2016-17, including a man-of-the-match winning first start in the EFL Cup win over Aston Villa.
The teenager signed a new two-and-a-half-year contract in December 2016, with the option of another year, and scored his first senior goal in the 4-1 win at Accrington in late April.
He finished his breakthrough campaign by earning a call-up to the England Under-19 long squad for training camps ahead of the 2017 UEFA European Championships in Georgia.