Cavani is currently out of a contract having left PSG in June.He left PSG under a cloud following a disagreement with Neymar and feels he has more to give to European football.
The Uruguay international, 33, has been in talks with United and although there is no deal yet, it is growing increasingly likely Cavani will join on what could be a two-year contract.
United are braced for some criticism but feel Cavani’s record justifies their move for him.
He has scored a total of 341 goals in 556 club games. he has a club record of 200 goals in 301 appearances for PSG. He has also scored 50 goals in 116 internationals for Uruguay.
If the deal does go through, one of Cavani’s first games could be against PSG, who are United’s opponents in their first Champions League group game at the Parc de Princes on 20 October.