Arsenal and Germany centre half Shkodran Mustafi has been ruled out of the Gunners' weekend trip to Watford, after suffering an injury whilst on international duty.

The 25-year-old was forced off the field after only 36 minutes against Azerbaijan on Sunday. Mustafi pulled up right before the visitors found an equaliser against the world champions - before being treated on the pitch and eventually replaced by Matthias Ginter.

The Germans ended the match as 5-1 victors, but Mustafi looks on bleakly, awaiting to find out the extent of his injury.

Germany v Azerbaijan - FIFA 2018 World Cup Qualifier

Meanwhile, reports are surfacing this week of the defender's strife - though very little seems to be clear. While Mustafi's injury is obvious, the actual specifics behind his upcoming absence remains in question.

While Sky Sports claim the defender has undergone hamstring trouble, the same publication quote Germany boss Joachin Low as referring to ligament damage.

"It doesn't look good, it looks like he had torn a ligament. We're waiting for a full diagnosis, but it looks like he will be out for a while." The Germany manager said in regards to Mustafi's substitution.

However, according to the Mirror, amongst most other reports, Mustafi faces seven weeks out of action with a potential thigh tear; with Low being quoted as saying:

“With Mustafi it seems that it is muscle tear or some muscle fibre tear. In any case it could force him to a longer break.”

What is clear is that Mustafi will miss the Gunners' return to Premier League action against Watford on Saturday. Arsenal's medical team took a look at the German on Monday and are currently awaiting results.