In 2020, after spending the offseason with the Hamilton Tiger-Cats of the Canadian Football League (CFL), Cojolum returned to Mexico and was signed by Dinos de Saltillo.
Despite initially not wanting to practice American football, Cojolum played in local teams since he was four years old and joined the youth club Mavericks, where he won six championships.
Cojolum has stated that the neighborhood where he grew up was dangerous and that many people there ended up on drugs or crime, but thanks to his love for sport he managed to stay out of trouble.
[2][3] After finishing his college eligibility with the Linces UVM, Cojolum was signed by the Mayas CDMX as the team's first pick of the inaugural LFA draft.
[7] Cojolum was signed by the Dinos de Saltillo ahead of the 2020 LFA season, though it was ultimately cancelled due to the COVID-19 pandemic in Mexico.