Trevor Sinclair has apologised for any offence caused by his tweet following the death of the Queen.
Shortly after news of the monarch's death on Thursday was broken, Sinclair took to Twitter to publish a controversial post. He wrote: "Racism was outlawed in England in the 60's & its been allowed to thrive so why should black & brown mourn!! #queen."
He received fierce criticism for the post - which was later deleted.
On Friday, talkSPORT confirmed that the former Cardiff City player would not be used by the radio station while they carried out an investigation into his tweet.
"Trevor Sinclair will not be on air while we carry out a thorough investigation into the circumstances and timing of his tweet," a statement read. "While we respect the right of Trevor Sinclair to express his opinion on his personal Twitter account, talkSPORT does not endorse the tweet."
And Sinclair has reactivated his Twitter account to issue an apology for his "ill-timed" tweet. He wrote: "My tweet yesterday was ill-timed at a time when the Royal Family, and many around the world were grieving for the Queen. I apologise for any offence caused to those mourning The Queen."
Ex-England international Sinclair - who has more than 100,000 followers on Twitter - has received further backlash in response to his apology.
Sinclair regularly features as a pundit on talkSPORT's White and Jordan show with host Jim White and former Crystal Palace chairman Simon Jordan.