Baró was given the first team's number 8 shirt ahead of the 2019–20 season, inheriting it from Yacine Brahimi. He made his debut in the UEFA Champions League third qualifying round first leg on 7 August, starting in a 1–0 win away to FC Krasnodar and making way for Luis Díaz on 55 minutes. Ten days later he played his first game in the Primeira Liga, again starting a 4–0 home win against Vitória FC.
