He currently plays for Al-Arabi SC(KSA), wearing the number 3 shirt. He plays primarily as a Defender. He stands at 185cm tall and weighs 85kg. His preferred foot is Right.

Throughout the Saudi First Division League 2025-2026, Leonardo Sheldon Martins featured in 6 matches, averaging 0.8 tackles, 0.3 interceptions, and 5.8 clearances per game, while blocking 0 shots per game.