Cuba's Joahnys Argilagos (left) congratulates Colombia's Yurberjen Herney Martinez after their Olympic light flyweight semi-final in Rio de Janeiro

Colombia's Yurberjen Martinez on Friday became the first boxer into a final at the Rio Olympics as he shocked Cuban hot prospect Joahnys Argilagos.

Martinez, 24, is guaranteed at least a silver after he outwitted the gifted 19-year-old in their light flyweight semi-final for a split-decision victory.

In Sunday's final he will face either Hasanboy Dusmatov of Uzbekistan or the American Nico Hernandez.

Cuba's boxers have sparkled so far in Rio, but this was a surprise, first defeat for the country.

Source: AFP