"When the minimum is three, (then) the maximum is six
I am not specialist enough to know, it is a grade two hamstring (tear), so let's say four weeks."
Midfielder Aaron Ramsey's return from a thigh injury has been delayed, and England international Jack Wilshere is sidelined with a broken foot
Sweden international Kim Kallstrom could be in contention for his debut after signing on loan from Spartak Moscow with a back injury while full-back Nacho Monreal is also available again
Wenger added: "It is of course a blow, but I am confident we have the quality to deal without him (Ozil)
We have many creative players who can take over to produce quality performances."
Source : PA
Source: PA