Mason Greenwood has been spotted training in Manchester with former United team-mates Kobbie Mainoo and James Garner.
Greenwood, 23, is fresh off an impressive debut season for Marseille that saw him score 21 goals in 34 Ligue 1 appearances as the French side qualified for the Champions League.
The forward signed for Marseille last summer for a fee worth £27million, plus £3.2m in add-ons, after his 17-year association with United came to an end.
That came after the 23-year-old was charged with attempted rape, assault and controlling and coercive behaviour in October 2022, but the charges and case were dropped in February 2023 when key witnesses withdrew.