Alexis Sanchez was forced to withdraw from training on Saturday after he was injured in a collision with teammate Enzo Roco.
The problem will be a concern for Chile who are set to face Argentina in the final of the Copa America in the early hours of Monday morning (UK).
Sanchez has started every game at the tournament so far, racking up a total of 540 minutes for his country.
It is not yet clear if he will be fit to face Argentina but if we had to put money on it, we would say he will be.
He’s Alexis. He doesn’t stay injured.
16 – Among the #Copa100 finalists, Alexis Sanchez has won the most fouls (16) – Lionel Messi the second most (10). Provoker
— OptaJavier (@OptaJavier) June 24, 2016