Arrua was in the corner for wife Sabrina Perez’s interim WBC featherweight title with Australian Skye Nicolson on Friday.

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He collapsed between the ninth and ten rounds of the world title fight after suffering a heart attack at the Auditorio Municipal Fausto Gutierrez in Mexico.

But sadly, he didn’t recover and tragically passed away.

WBC president Maurico Sulaiman confirmed the tragic passing of Arrua on Twitter.

He said: “It is with deep sadness that we have been informed of the sudden death of Argentine coach Diego [Arrua].

“Who suffered a devastating heart attack during the Sabrina Perez fight in Tijuana.”

Matchroom Boxing – who prompted the fight – also paid tribute to the late Arrua.

They tweeted: “Our thoughts and condolences are with Sabrina Perez and your loved ones.”

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