Arsenal have been dealt a major blow after star forward Alexis Sanchez picked up a low-grade muscular injury in training during the international break.
The Chilean national team revealed the nature of Sanchez's problem via their official website on Tuesday (h/t the Daily Express' Uche Amako).
Sanchez, 27, will now likely miss crucial upcoming Gunners fixtures against Manchester United and Paris Saint-Germain.
Sanchez is one of the Gunners' most important players and is crucial to the effectiveness of the Arsenal forward line.
