Renowned trainer and manager Stefy Bull, pictured far left, has been found guilty of conspiracy to supply cocaine, according to the BBC.

Bull, full name Andrew Bulcroft, was convicted by a jury at Sheffield Crown Court on February 28 and has been remanded in custody since.

The 48-year-old from Doncaster denied the charges but the jury delivered a unanimously guilty verdict after a four-day trial, it was reported. He will now be sentenced at the same court on August 26 along with his co-defendant Benjamin Williams.

Bulcroft has been an integral part of the Yorkshire boxing scene, steering Terri Harper to world titles in three different weight classes while also playing a key role in the careers of the likes of Maxi Hughes and Jamie McDonnell.

Before his move into training and management, ‘Supersonic’ had a 37-fight professional career which included a defeat to future unified light-welterweight champion Amir Khan back in 2007.

During his trial, the court heard how he used the encrypted phone network Encrochat to buy what was described as ‘significant amounts’ of cocaine using the pseudonym ‘Yummycub’. Bulcroft denied that allegation and instead suggested that one of the boxers who occasionally stayed at his house may have been ‘Yummycub’ but did not name anyone.

There has been no suggestion of any wrongdoing from any of the fighters associated with Bull.

Co-defendant Williams pleaded guilty to conspiracy to supply cocaine, possessing cocaine with intent to supply, possessing cannabis with intent to supply and possessing criminal property.

He has been released on conditional bail ahead of August sentencing. According to the Sentencing Council for England and Wales, conspiracy to supply a class-A drug could carry a sentence of 16 years imprisonment.