Mesut Ozil will miss up to six weeks with a hamstring injury, ruling him out for a number of key Premier League games, reports the Daily Mail.
The Arsenal playmaker was withdrawn at half-time during Arsenal's 1-1 draw with Bayern Munich after sustaining the injury and further scans have confirmed Arsene Wenger's initial fears.
He returned to Arsenal's training ground this morning to undergo a scan on the stricken area with the club physios diagnosing a grade two hamstring strain.
An injury of that magnitude usually takes between four to six weeks to heal meaning Ozil will definitely miss crucial Premier League games against Tottenham, Chelsea, Swansea City, Manchester City and Everton.
Wenger originally believed that the injury would keep him out for at least a few weeks after his initial assessment but said he could not confirm anything until proper tests were carried out.
Now those fears have been realised, Arsenal's record signing now faces a fight to be fit for the FA Cup semi-final clash against Wigan on April 12.
In a worst case scenario, Ozil may not be fit to return until early May, which would not only dent Arsenal's hopes in the Premier League title race but also place him as a doubt for the World Cup.
The same report claims that the German international felt his hamstring go in the opening 10 minutes of the second-leg tie at the Allianz Arena but, determined to play on, kept quiet until half time and aggravated the injury further.
Speaking about Ozil after the game on Tuesday night, Wenger said: "He has a hamstring injury that looks quite serious. I don’t know how long he will be out. For sure, he is out of Spurs.
"We have to make a scan tomorrow (Wednesday) to see how bad it is but he is out at least for a few weeks. I hope it’s not too bad."
Arsenal face Tottenham on Sunday in at White Hart Lane and must avoid defeat to avoid being sucked into a familiar battle for a top four place.