Gary Lineker has been criticised by cricket host Jonathan Agnew for expressing his political views on Twitter.
Agnew told Lineker that as "the face of BBC Sport", he should "observe BBC editorial guidelines".
"Keep your political views, whatever they are and whatever the subject, to yourself," he continued.
Lineker responded by saying he could "tweet what he likes" and would continue to do so.
The Match of the Day presenter has often been outspoken on Twitter - regularly writing about Brexit and Prime Minister Theresa May.
Agnew suggested that he would be "sacked" if he followed the Lineker's example.
But, responding to the criticism on Thursday evening, the former footballer wrote: "I'll continue to tweet what I like and if folk disagree with me then so be it."
@GaryLineker Gary. You are the face of BBC Sport. Please observe BBC editorial guidelines and keep your political views, whatever they are and whatever the subject, to yourself.— Jonathan Agnew (@Aggerscricket) December 13, 2018
I’d be sacked if I followed your example. Thanks.
Jonathan, I’m the face of my own Twitter account. I’ll continue to tweet what I like and if folk disagree with me then so be it. Thank you so much for your concern, which, I imagine, wouldn’t be a concern at all if you agreed with me. 👍🏻— Gary Lineker (@GaryLineker) December 13, 2018
What did Gary Lineker tweet?
On Wednesday, Lineker posted a thread of tweets as the Conservatives held a no-confidence vote in Theresa May.
He also indirectly criticised Labour leader Jeremy Corbyn, implying the party should be ahead in the polls given the current political uncertainty.
Extraordinary to watch us take our country back and rip it to shreds in the process.— Gary Lineker (@GaryLineker) December 12, 2018
Imagine how hopeless you’d have to be to still be behind the Tory party in the polls. The absolute state of our politics.— Gary Lineker (@GaryLineker) December 12, 2018
Why does Jonathan Agnew object?
Aggers, as he's known, suggested BBC presenters should abide by the corporation's standards on impartiality.
The BBC's editorial guidelines state: "Impartiality lies at the heart of public service and is the core of the BBC's commitment to its audiences."
Another section reads: "BBC staff and regular BBC presenters or reporters associated with news or public policy-related output may offer professional judgements rooted in evidence.
"However, it is not normally appropriate for them to present or write personal view programmes and content on public policy, on matters of political or industrial controversy, or on 'controversial subjects' in any area."
What is Lineker's defence?
Lineker falls into a slightly different category both because of his contract and his role as a sport presenter.
A BBC spokesperson said: "Gary is not involved in any news or political output for the BBC.
"As such, any expression of his personal political views does not affect the BBC's impartiality."
Lineker only presents sports coverage for the corporation, and is not a journalist or involved in news coverage or commentary.
Previously, the corporation has also defended his right to voice his opinions freely because of his contract.
In 2016, when he was criticised for some tweets about child migrants, the BBC responded by saying: "Gary is a freelance broadcaster and this is a personal Twitter account."