Olympic champion Michael Johnson bowed out of the 'Celebrity Apprentice' (Sun., 9PM on NBC) competition last night.

Johnson didn't divulge many details, but told Donald Trump he was leaving the show for personal reasons involving his son.

"What's the problem, are you fighting with the wife?" Trump asked. "It's just a personal issue," Johnson said. The Olympian seemed hopeful that he'd be able to return, but the Donald shot that down citing the unfairness to other contestants.

Watch the video after the jump.Olympic champion Michael Johnson bowed out of the 'Celebrity Apprentice' (Sun., 9PM on NBC) competition last night.

Johnson didn't divulge many details, but told Donald Trump he was leaving the show for personal reasons involving his son.

"What's the problem, are you fighting with the wife?" Trump asked. "It's just a personal issue," Johnson said. The Olympian seemed hopeful that he'd be able to return, but the Donald shot that down citing the unfairness to other contestants.