For his part, 27-year-old Simpson admitted he would not be taking Smith lightly, but added that he sees victory as an opportunity to step into the void in Scottish Boxing that was left by former World Champion Scott Harrison.

BBC: Smith wants Simpson's Commonwealth Featherweight title

Costello said Gavin was not able to step up to the heavier class because fellow British boxing team-mate Bradley Saunders had already qualified in the light-welterweight.

BBC: Medal hope Gavin out of Olympics

"Obviously this is a big step up for me but, with respect to Audley, I had only started boxing when he was winning the gold medal in Sydney, " he explained in more measured tones than in his original outburst.

BBC: Rogan and Harrison trade verbals