Ian Wright was told his mother had passed away just 30 seconds before going live on ITV on Sunday.
The Arsenal legend was providing punditry on Rochdale vs Plymouth in the FA Cup second round alongside former Norwich City striker Grant Holt.
But he had to leave at half-time when informed Nesta, 94, had died.
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Presenter Mark Pougatch addressed the matter once ITV returned from the ad break, saying: "Ian, I’m afraid is
not [with us at half-time].
"A family bereavement, so he has gone to where he is most needed – with his family."
Wright, who scored 287 career goals and was awarded an MBE in 2000, had a challenging upbringing.
He revealed home was a "difficult place to be" and a "repressive environment" in a documentary called 'Home Truths' earlier this year.
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In the BBC production, the 58-year-old talked about having to contend with an "abusive stepfather" but did add he had patched things up with mother.
"Ian would be the first to admit he had a difficult relationship with his mum, but hearing your own flesh and blood has passed away is never easy," a friend told The Sun.
"It’s upsetting news to hear for anyone.
"He was told just before he went back on air at half time, and wanted to be with his family, which ITV obviously totally understood.
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"He left the ground immediately to be with them."
Featured Image Credit: Image: PATopics: Ian Wright, Arsenal, FA Cup