Junior Alonso is a 34-year-old professional football player from PAR. He currently plays for Atletico Mineiro, wearing the number 6 shirt. At the international level, he represents Paraguay. He plays primarily as a Defender. He stands at 184cm tall and weighs 83kg. His preferred foot is Left. His current market value is estimated at 3M €.

His most recent move was a Free from FK Krasnodar to Atletico Mineiro on 2024-07-10. The reported fee was 1.1M €.

Throughout the Brazilian Serie A 2026, Junior Alonso featured in 4 matches, averaging 0.3 tackles, 1.5 interceptions, and 4.3 clearances per game, while blocking 0 shots per game.