Cabral told reporters after his match: “Yesterday the idea of wearing a black strap came up – that was not allowed.
“I asked for permission to use the black ribbon and they let me play with it.
“It was an honour – it was not for the best reason. He was an inspiration not only for me but for the country in general.”
He added: “He made so much in the sport and conquered so much in my life. It was an honour for me to try and help.
“If I helped one per cent for the family I will be super happy.”