REVEALED: The inside story of the drug probe that may end Paul Pogba's career

He has won a World Cup final (in which he scored), lifted four Serie A titles and pulled Manchester United's pants down not once but twice.

Paul Pogba, it is safe to say, is a man who has grown fully accustomed to winning.

No wonder then that - faced with arguably the threat of what could be a career-ending doping ban - he has turned to the man regarded as the best in the business.

Mike Morgan, as he always does, declined to comment when contacted by Mail Sport.

But it is understood that the London-based specialist, who has worked with the likes of Tyson Fury, Conor Benn and Chris Froome, is currently formulating the Frenchman's response after he tested positive for testosterone-boosting DHEA and his world stopped turning.

Pogba, now at Juventus after strolling out of Old Trafford for a second time, is 30 years old. The standard punishment for such an offence is a four-year ban. While he may get a gig in Saudi Arabia or MLS if such a punishment is forthcoming, it would signal the end of Pogba's time at the elite level.

Those who know him say there is huge frustration. There is also strong denial. Not a denial that the DHEA, which elevates naturally produced testosterone, was in his system.

It is understood that Pogba accepts that. But Morgan is likely to argue - with the full backing of his client - that this was a mistake. That Pogba had no idea how it got there. That there was no attempt to gain a competitive advantage.

A long and painstaking operation to find the cause of what he will argue was an unwitting ingestion, is ongoing. Receipts are being requested and scoured. Every potion in the house, including all of his wife's beauty products, has been tested.

Some, however, appear to have made their minds up already. It can