Futebol Clube do Porto "Juniors" (Portuguese: Juniores), commonly known as Porto Juniors, is the under-19 football team comprised in the youth department of Portuguese club FC Porto. Based in Olival and Crestuma, two local civil parishes part of the Vila Nova de Gaia municipality, they hold home matches at the club's training complex, CTFD PortoGaia. Domestically, Porto have won 23 Campeonato Nacional de Juniores titles. Internationally, they won the Blue Stars/FIFA Youth Cup in 2011 and the UEFA Youth League in 2019. In the latter, they became the first Portuguese club to conquer the competition and were also distinguished with the "UEFA's Best Educational Action" award. Between the department's several development teams, two other youth categories complete the three main age groups, the Juvenis (under-17) and the Iniciados (under-15), who compete in their respective national leagues organised by the Portuguese Football Federation.

Rio Ave Futebol Clube, commonly known as Rio Ave , is a Portuguese professional football club based in Vila do Conde, northern Portugal, which competes in the Liga Portugal 2. The club is named after the Ave River, which flows through the town and into the Atlantic Ocean. Founded in 1939, they play their home matches at Estádio do Rio Ave, also known as the Estádio dos Arcos. Built in 1985, the current stadium seats approximately 12,815 people and is a multi-sports venue, although it is used mainly for Rio Ave's football matches. The club's home colours are green and white striped shirts with white shorts and socks, while their away kit consists of a red and white striped shirt and white shorts with yellow socks. Portuguese internationals Alfredo, Paulinho Santos, Quim, Rui Jorge and Fábio Coentrão started their careers at the club. Goalkeepers Jan Oblak and Ederson are some famous talents that were part of this side. The Vilacondenses' best top-tier league finish was fifth in the 1981–82, 2017–18 and 2019–20 seasons. They reached the 1984 Taça de Portugal Final, where they lost to Porto 4–1, and the 2014 Taça de Portugal Final, where they lost to Benfica 1–0. With this result, Rio Ave qualified for the 2014–15 UEFA Europa League, their first participation in a major European competition.