The BBC announced on Monday that it had reached an agreement with Gary Lineker, a star sports personality, that will allow him to return to hosting its flagship soccer program, “Match of the Day.”

The move defuses a crisis that began with a politically charged post that Mr. Lineker posted on Twitter last week about the British government’s immigration policy and escalated into a staff mutiny that threatened the BBC’s reputation and stability.

“Gary is a valued part of the BBC and I know how much the BBC means to Gary, and I look forward to him presenting our coverage this coming weekend,” Tim Davie, the broadcaster’s director general, said in a statement.

Mr. Davie said the BBC would launch an independent review into its social media guidelines.

In a Twitter post, Mr. Lineker said, “After a surreal few days, I’m delighted that we have navigated a way through this.” He also thanked his colleagues at the network who had supported him.

Mr. Lineker’s standoff with the BBC had set off a noisy national debate about free expression, government influence and the role of a revered, if beleaguered, public broadcaster in an era of polarized politics and freewheeling social media.

This is a developing story. Check back for updates.