The ex-Swindon greyhound racing manager who won a tribunal against his former employers has once again found himself in the centre of a scandal.

Kiaran O'Brien was awarded more than £16,000 after an employment tribunal found he had experienced 'detriment at work' for raising concerns over race-fixing and animal welfare at Swindon greyhound stadium.

Following this, he was hired by Kevin Boothby as the racing manager for the newly opened Oxford Stadium because of his "integrity."

But weeks later O'Brien was ousted out of the blue by the organisation, which claimed in a statement that he was not "the right fit".

Read More: Swindon Greyhound whistleblower awarded thousands at tribunal

In an article in the Racing Post the day after his dismissal, O'Brien is quoted as saying "this has come as a surprise to me".

Things then escalated when a private conversation between O'Brien and someone else was leaked via Twitter without his knowledge, revealing allegations of corruption and cover-ups.  

In the messages, O'Brien says that trainer Frank Gray was seen giving his dogs in the paddock something other than water and after starting an investigation was told to "drop it and destroy the samples."

O'Brien refused and reported the incident to the Greyhound Board of Great Britain.

Later, in a now-deleted tweet, Gray posted a picture of a bottle of electrolyte drink that he gave his greyhounds that day. This is a breach of GBGB rules and warranted the investigation that O'Brien wanted. 

The other contributing factor that he alluded to in the Racing Post article was his voiding of a race on October 20, a few days before he was told to leave. 

Swindon Advertiser: Dogs caught in slow-opening traps at Oxford StadiumDogs caught in slow-opening traps at Oxford Stadium (Image: Twitter)

During this race the starting traps were slow to open causing the dogs to get dangerously impeded, an incident that led to Oxford announcing it would get them replaced for welfare reasons.  

But a week later, on October 27, it happened again, leading to trainers boycotting races there over fears a dog could get hurt or die.  

Both incidents come at a bad time for the sport in general as three major UK animal charities, RSPCA, The Dog’s Trust, and Blue Cross have joined forces to call for it to come to an end.

In a statement on the matter, the charities said that there are still significant welfare issues for racing greyhounds which have not been resolved and cannot be resolved.

Kiaran O'Brien was approached for comment.