One of 11 youngsters to sign a full-time scholarship at the Magpies' Little Benton Academy in the summer of 2025, Miley is capable of playing in central midfield or as a full-back.
Mason made his full Under-18s debut at the age of 15 in August 2024 before establishing a role in Newcastle's Under-21s squad during the second-half of the 2025/26 season, making his first start at U21 level in January's 1-1 draw away at local rivals Sunderland.
The Stanley-born youngster made his first outing for the Magpies' senior squad during a pre-season friendly win against Valencia in August 2025, featuring as a substitute in front of over 41,000 spectators at the Mestalla Stadium.
The promising teenager gained his first senior start during Newcastle's pre-season clash against Bundesliga side Bayer 04 Leverkusen at St. James' Park before being named in a Premier League matchday squad for the first time during September's trip to Leeds United.
