Ibrahimovic will leave PSG on a free transfer when his contract expires next month .
Ibrahimovic 's agent , Mino Raiola , last week Ibrahimovic 's his client had not agreed to sign for United .
Ibrahimovic will leave PSG on a free transfer when his contract expires next month but his agent , Mino Raiola , last week stressed his client had not agreed to sign for United .