The 20-year-old has been part of our Academy since 2019, when he signed from hometown club Real Zaragoza.
Although he was born in the northern Spanish city, Mejia is eligible to represent Colombia through his parents and made his debut for their Under-20s in December 2022.
Mejia recovered from a couple of injury setbacks to establish himself as a regular for the Under-21s, making 15 appearances and scoring against Arsenal and Leicester City in 2022/23.
He travelled to the United States as part of the youth squad last summer and played in the friendly against Wrexham, replacing Shola Shoretire for the final stages in San Diego.