Freed from his doping ban, Peru's captain and main goalscorer Paolo Guerrero was on Monday included in the country's pared-down World Cup squad at the expense of midfielder Sergio Pena.
Pena signalled that he had been omitted with a post of his Instagram account on Sunday after playing as a second-half substitute as Peru beat Saudi Arabia, 3-0, in a World Cup warmup game.
"Today I have lived through the hardest moment of my career," wrote Pena, who plays for Granada in Spain.
"I feel that I did not do enough to be able play in the greatest tournament in the world and represent my country in the best way."
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