Our main aim was to investigate how video games influenced young football players’ declarative tactical knowledge (DTK). Our sample consisted of 70 male football players in the U-13, U-15, and U-17 age categories from the Extension Project ‘Futebol UFJF’. For the evaluation of DTK, the test validated by Mangas (1999), whose instrument was adapted by Giacomini et al., (2011) was used, thus considering the best p...