I think its more to do with other clubs not meeting his wage demands than Lacazette signing that is forcing Ozil to stay. (justarsenal.com)
We were never going to meet his wage demands with our business model, so wtf! (justarsenal.com)
Though it is possible to pay our stars what we want, with both Ozil and Alexis both wanting # 160k more a week, with a clear out we could easily meet their wage demands and add extras to our squad this summer. (justarsenal.com)