Everything You Need To Know About The Premier League Doping Scandal

Today's Sunday Times features an investigative report regarding a doctor who claims to have doped 150 sports stars - including some 'extremely well known footballers'.

Dr. Mark Bonar is the man in question.

Here's everything you need to know regarding the Premier League allegations.

1. Bonar claims to have worked with 'a few footballers' who either played with or are currently at Arsenal, Birmingham, Chelsea and Leicester. Some of these players are said to be 'extremely well known to fans'.

2. The doctor said he gave one player a 'cocktail' of steroids.

3. He also said that another player recently approached him looking for a treatment which would extend his career.

Bonar justified his methods by saying:

Footballers are hardly ever tested anyway. Think about it, you're like in your thirties and you're on the football pitch. How do you keep up with the 18-year-olds on the pitch unless you're doing something? If you're not doing something, then you are going to get screwed over.

4. Some of Bonar's business came via a man named Rob Brinded who was employed for six years as head of strength, conditioning, injury and rehabilitation at Chelsea. He left the club in 2007 and moved Barcelona as a fitness coach.

5. Brinded claimed that he was told some Chelsea players were using banned substances during his time at the club. The paper adds there is no suggestion that Chelsea knew anything about players doping.

6. Brinded said that he had recently encouraged one Premier League player to seek testosterone treatment and that he believed there had been contact between Bonar and the player. The player was contacted by the Sunday Times and denied the allegations.

7. The Sunday Times has no independent evidence verifying Bonar's claims. Both Arsenal and Chelsea have strongly denied the allegations.

8. Bonar is Irish. He is from Dublin and graduated from UCD.

As part of the investigation, the Sunday Times sent an athlete undercover to seek treatment from Bonar.

You can watch footage of a meeting with the doctor below.