Paul Pogba’s brother, Mathias, has accused the midfielder of paying at least €4 million (£3.5m) to a witch doctor who ‘neutralised’ Kylian Mbappe during Manchester United’s Champions League tie against Paris Saint-Germain in 2019.Manchester United news, exclusives and analysisMathias Pogba is currently in custody in Paris as he is under investigation for his alleged role in the blackmail plot involving the former Manchester United midfielder.Paul Pogba has accused a group of demanding €13 million (£11.2m) from him in ‘protection money’, essentially worth €1m (£860,000) a year from the age of 16 when he first became a professional footballer.Pogba, who returned to Juventus on a free transfer from United in the summer, handed over €100,000 (£85,000) to the group after being escorted at gunpoint to a flat in Roissy-en-Brie, in the eastern suburb of Paris, in March.Mathias Pogba, 32, has denied his part in the attempted blackmail but has been accused of ‘extortion in an organised gang’ and ‘participation in a criminal association with a view to preparing a crime’.On Friday, several pre-recorded video messages from Mathias Pogba surfaced online, one of which accused his brother of paying for a witch doctor to put a spell on Mbappe for United’s Champions League tie against PSG in 2019.United lost the first leg 2-0 at Old Trafford and Pogba was sent off, but Ole Gunnar Solskjaer’s side staged a remarkable comeback in Paris as they secured a 3-1 win in the return leg to progress to the quarter-finals.‘The turning point came with the World Cup in 2018, where Paul had more faith in the witch doctor than in God, entrusting the witch with a big task in order to help the French team win,’ Mathias Pogba said in his video.‘The witch