He lost by split decision in a surprise result
Paddy Barnes has been eliminated from the Men's light flyweight competition at Rio 2016.
The Belfast boxer who won bronze in London four years ago and four years before that in 2008, was beaten by split decision against Spain's Samuel Carmona Heredia.
Two of the judges awarded the fight 29-28 to Carmona, with a third judge giving it to Barnes by the same score.
The Irish team captain had started slowly, losing the opening round before fighting back to claim the second.
However, the judges deemed that Carmona had edged the third.
Barnes cited issues with cutting weight as a factor after the fight.