Pumas has completed the signing of Juninho Vieira, whose former name is Olávio Vieira dos Santos Júnior. The Brazilian attacker arrives from Flamengo, where he was a Copa Libertadores champion, in a transfer valued at approximately 5 million euros. Juninho arrives to restore offensive prominence to the UNAM side, which is managed by Efraín Juárez. Juninho stated that he hopes to be able to replicate some of his past performance.

Juninho Vieira, 29, arrived in Mexico City this Sunday to officially become a reinforcement for Pumas ahead of the Clausura 2026 tournament, arriving as a forward from Flamengo. Upon his arrival, Juninho acknowledged the pressure stemming from the club's period without winning a title, stating that he believes it is due to the team's greatness and that he hopes to help by always giving his best. The Brazilian explained that he was already familiar with the institution, both through its historical significance in Mexican football and from compatriots who have been at the club, such as Nathan. Juninho, who stated he is happy to represent Pumas, considers Liga MX to be a demanding and competitive tournament, partly based on the experiences of friends who have played there, and clarified that his focus is on helping the team win points rather than on individual scoring titles. The centre-forward has a current Transfermarkt market value of €1.50m.