Argentina's captain Lionel Messi's availability for the Copa America quarter-final against Ecuador remains uncertain due to a right hamstring injury, with coach Lionel Scaloni assessing his fitness. Despite Messi's absence in the last group game, Argentina aims to secure their 16th Copa America title. Ecuador, a strong contender, finished second in their group, setting the stage for a challenging match. With Messi's return to training, the focus lies on his readiness to play a pivotal role in the upcoming game, crucial for both teams' advancement in the tournament.