The trainer died of a heart attack during his wife's fight

Mauricio Sulaiman, President of the WBC, announced with sadness the death of Argentine coach Diego Arrua. He died of a heart attack during his wife Sabrina Perez's fight against Skye Nicholson.

“It is with deep sadness that we learned of the sudden death of Argentine trainer Diego Arrua, who suffered a severe heart attack during the Sabrina Perez fight in Tijuana,” the functionary wrote on Twitter.

It is worth noting that the Perez vs. Nicholson fight was broadcast on DAZN and was part of the boxing evening from Matchroom Boxing.