It follows a report by The Times on Monday which alleged Macklin had been secretly recorded in his office making the offensive comments.

An FA spokesperson said on Tuesday: "We are aware of the reports about the conduct of the former managing director of AFC Wimbledon, and we will investigate them."

On 4 September, The Dons announced Macklin was leaving his role at the club at the end of that week.

In that statement, the club shared their appreciation for his "hard work" and wished him all the best for the future.

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Following The Times report, the club issued a new statement, saying: "AFC Wimbledon strives to be a responsible, inclusive and modern fan-owned club.

"As such, it takes its obligation to act properly and set an example, as well as its duty of care towards employees and fans, extremely seriously.

"Behaviour such as that being alleged was and is not tolerated, nor is it representative of the culture at AFC Wimbledon.

"Once we became aware of the matter we acted appropriately in accordance with our responsibilities and values to promptly resolve it.

"For legal reasons we are not able to say more."