Doria, along with the PSG and Barcelona starlets, is among a host of talented youngsters with ambitions of making the senior that will play three friendlies in Doha next monthBrazil Under-21 coach Alexandre Gallo has named his 22-man squad to face Egypt, Qatar and Lebanon in Doha next month.
Gallo is currently in Spain with the Under-20 side competing in the COTIF L'Alcudia tournament in Valencia and was joined in Spain this week by senior coach Dunga and Technical Coordinator Gilmar Rinaldi, who are both casting a keen eye over the development of Brazil's youth sides.
On August 19, Dunga will announce his squad for the Gillette Brasil Global Tour clashes with Colombia and Ecuador in the United States next month.
Gallo will lead Brazil's quest for their first Olympic Gold in Rio and will take with him to Doha a number of those thought to make up the bulk of his squad in 2016.
Paris Saint-Germain defender Marquinhos, who made his senior debut in against Honduras last November, was included, as was Botafogo stopper Doria. Both were among those hoping to make Dunga's first 23.
Barcelona's Rafael Alcantara, whose brother Thiago chose to represent Spain, has pledged his international future to Brazil and is another who will be keen to impress Dunga.
Ederson (Rio Ave - Portugal)
Jacsson (Internacional - Brazil)
Doria (Botafogo - Brazil)
Marquinhos (Paris Saint-Germain - France)
Vinicius (Lazio - Italy)
Wallace (Braga - Portugal)
Fabinho (Monaco - France)
Gilberto (Internacional - Brazil)
Wendell (Bayer Leverkusen - Germany)
Douglas Santos (Udinese - Italy)
Alison (Santos - Brazil)
Danilo (Braga - Portugal)
Lucas Silva (Cruzeiro - Brazil)
José Wellison (Vitoria - Brazil)
Luan (Gremio - Brazil)
Rafael Alcantara (Barcelona - Spain)
Ademilson (Sao Paulo - Brazil)
Alisson (Cruzeiro - Brazil)
Douglas Coutinho (Atletico Paranaense - Brazil)
Otavio (Internacional - Brazil)
Vinicius Araujo (Valencia - Spain)
Vitinho (CSKA - Russia)