According to the latest reports out of Italy, Suso's muscle injury, which previously wasn't deemed to be serious, could cause more problems than expected.
In fact, as reported by La Repubblica, Suso could even miss the Supercoppa Italiana final against Juventus, which will take place in Saudi Arabia on the 16th of January.
The Spanish winger has been left out of Milan squad against Frosinone due to injury, and the Rossoneri suffered a goalless draw in his absence.