Gray’s debut could hardly have been timed much better as Leeds romped to a 6-0 win over Stoke City and promotion back to the Premier League.
The 16-year-old was front and centre of celebrations as his boyhood club finally escaped the Championship at the second time of asking.
Gray’s debut makes him the youngest member of his illustrious family to pull on the white shirt of Leeds, beating elder brother Archie’s record which was set at the beginning of last season.
Here, the YEP recaps the 15 youngest players to represent Leeds and where they are now.
7. Ryan Edmondson: 16 years, 11 months and 16 days
The striker made an appearance at the end of the 2017/18 campaign but would only take to the field for his boyhood club one more time. Loans followed, then a permanent switch to Carlisle United. He now plays for former Thorp Arch academy coach Mark Jackson's Central Coast Mariners in Australia. | Leeds United
8. Jimmy Greenhoff: 16 years, 10 months and 26 days
One of the youngest debutants of the Don Revie era, Greenhoff played 133 times for Leeds, scoring 36 goals. He went on to represent Birmingham, Stoke and Manchester United. He was a League Cup and Fairs Cup winner with Leeds in 1968. | Getty Images
9. Simon Walton: 16 years, 10 months and 25 days
Midfielder Walton played regularly during his first season at Elland Road but eventually he and the club parted ways, after 38 total appearances. He initially spent time at several clubs in the EFL before dropping into non-league later in his career. | Getty Images
10. Aidy White: 16 years, 10 months and 16 days
The experienced full-back burst onto the scene as a 16-year-old at Elland Road making over 100 appearances as a youngster. He recently retired from the game after representing Hearts in the Scottish Premiership and Rochdale. | Getty Images
11. Neil Aspin: 16 years, 10 months and 8 days
Defender Aspin made 244 appearances for Leeds throughout the 1980s before joining Port Vale where he also became something of a stalwart, appearing over 300 times for the Valiants. He has also managed Harrogate Town, Halifax Town and Gateshead since hanging up his boots. | Getty Images
12. James Milner: 16 years, 10 months and 6 days
One of Elland Road's most famous sons, Milner is a three-time Premier League winner with Manchester City and Liverpool after breaking through at Leeds. He is still regarded as one of the most dependable players in modern English football history. | Getty Images