Arsenal must heed the original advice of Bayern team doctor Hans-Wilhelm Muller-Wohlfahrt.
When Mesut Ozil arrived in Frankfurt for training with the German national team the medics were immediately concerned with knee trouble reported by the Arsenal midfielder.
He was sent for a scan and the prognosis from the German medical officer Hans-Wilhelm Muller-Wohlfahrt was that Ozil needed to rest for at least 10-12 weeks.
The doctor is world renowned for his treatment of top quality athletes, treating the likes of Usain Bolt, Jose Maria Olazabal, Boris Becker and the German World Cup winning side of this summer in their ailments.
Known as 'Healing Hans', when Ozil injured himself playing against Bayern Munich in a Champions League tie he went to see him instead of the Arsenal medical staff after the game - such is the faith Ozil has in this man.
But Wenger quickly disputed the diagnosis of Wohlfahrt. He said that Arsenal's medical team would decide his recovery time and yesterday stated he might be out for 'six weeks' - half the time recommended from one of the world leaders in treating sports injuries.
Arsenal should heed his advice.
As an example, Bayern Munich star Thiago Alcantara recently suffered yet another knee injury, his third since joining the club. This one however came after he went to see manager Pep Guardiola's personal physician in Barcelona instead of the Bayern doctor - the two at odds over his recovery and the use of cortisone injections.
Meanwhile Real Madrid were far more accommodating in his attempts to nurse Sami Khedira back to health - which went reasonably well considering the severity of his injury.
This recent setback has once again proved the doctor right.
If Arsenal do not wish to risk further injury or exaggerating the current problem they would be wise to take the advice of 'Healing Hans' - and leave Ozil on the side-lines for the rest of 2014.