Argentina’s October 6 friendly against Benin at Estadio Monumental serves as Lionel Messi’s final international appearance after his August retirement announcement, with the 39-year-old Inter Miami forward starting in a low-stakes send-off organized by the AFA and coach Lionel Scaloni. Recent Argentina friendlies without Messi produced comfortable wins, but this fixture carries heavy emotional weight, prompting expectations of a ceremonial role that balances tribute with workload management for an aging player. Official squad details confirm Messi, Rodrigo De Paul, and Giovani Lo Celso feature only here, while potential late substitutions for ovations or rotation remain plausible given the friendly context and Messi’s MLS schedule. The tight clustering of probabilities across 45–90-minute ranges reflects trader uncertainty over exact substitution timing amid the celebratory atmosphere.