Overview

• Racing defends a 1-0 first‑leg lead over Vélez on Tuesday at 19:00 in Avellaneda, with Esteban Ostojich refereeing and Lisandro Magallán suspended for the visitors.
• Key Racing starters Adrián ‘Maravilla’ Martínez, Agustín Almendra and Gastón Martirena sit one booking from missing a potential semifinal, while late fitness calls include Santiago Solari.
• River travels to São Paulo down 1-2 to Palmeiras as Marcelo Gallardo weighs formation changes and personnel shifts, including Juan Portillo for Enzo Pérez and the return of Giuliano Galoppo.
• River’s 2-0 loss to Atlético Tucumán ended a 15‑match away unbeaten run and cost it the Zone B lead to Deportivo Riestra ahead of the continental rematch.
• Lanús visits Fluminense at the Maracaná on Tuesday seeking to protect the 1-0 Sudamericana quarterfinal edge, as Boca faces scrutiny after a 2-2 draw with Central Córdoba and Miguel Ángel Russo’s single substitution.