By Tony Hughes

Alexis Sanchez is out for at least six weeks, and will miss eight key games for Arsenal, according to a report.

The Sun claims that Arsenal have been told that Sanchez will be out for six weeks after picking up a “low-grade muscle” problem on international duty with Chile.

The striker is having treatment for the injury in Santiago and is yet to have a scan, but the report claims that he will not be back, as hoped, for the game with Manchester United on November 19.

It goes on to say that Sanchez will also miss the crunch Champions League matches with Paris Saint-Germain and Basel, along with additional Premier League games against Bournemouth, Southampton, West Ham, Stoke and Everton.

The news could get worse after the scan, with a huge game against Premier League rivals Manchester City at the Etihad on December 18.

It’s a massive blow for the Gunners who have made a strong start to the season.

They’re unbeaten in all competitions since the opening day defeat against Liverpool, are currently just two points off the pace in the Premier League and have already qualified for the last 16 of the Champions League.

Sanchez has been a big part of this and has made 15 appearances in all competitions, scoring eight goals and supplying seven assists.

Arsene Wenger has decided to use the Chilean international to spearhead Arsenal’s attack this season and he is currently keeping Olivier Giroud out of the starting XI.

A long-term injury could see the French international get his chance to reclaim his spot as the no.1 striker for the Gunners.

In other Arsenal team news, Hector Bellerin has given the club a boost by signing a new six-year deal worth over £31.2million.