Zlatan Ibrahimovic is the biggest signing of the window as far as United are concerned .
All eyes will be on Zlatan Ibrahimovic to see if Zlatan Ibrahimovic can still produce Zlatan Ibrahimovic 's best quality in the world 's most physical league at the age of 34 .
Zlatan Ibrahimovic is the biggest signing of the window as far as United are concerned , and all eyes will be on him to see if he can still produce his best quality in the world 's most physical league at the age of 34 .