Arsenal manager Arsene Wenger has warned Chile against making a "suicidal decision" over the fitness of Alexis Sanchez.

The 27-year-old sustained a hamstring injury during training with Chile on Tuesday, although the player himself has moved to allay concerns over the severity of the problem.

Sanchez will remain with the Chile squad and could still feature against Uruguay on Tuesday, but Wenger urged them to use caution when determining his fitness.

"I got a text last night to say that he has a hamstring injury. We have to get access for our medical staff to the MRI scan to see what grade it is, how bad it is and make absolutely sure they don't make any suicidal decision that could harm his future for two or three months," he told beIN Sports.

"That is absolutely important. It's a grey area between the national team and the club team and of course they look at their own results which I can understand, but we have to preserve the health of Alexis Sanchez.

"The team from Chile has travelled without him and they kept him to try and get him fit to play Uruguay for the second game on Tuesday night. He always wants to play and that's where it is a more sensitive case because he's always ready to play even when injured."

Sanchez has scored eight goals in 15 appearances for the Gunners so far this season.