This allowed him being called to Chilean national U-20 team that participated in the 1958 South American Championship held in his country.

Equally, in 1959 he was the cup's top scorer with six goals alongside Juan Soto ―from Colo-Colo― and Héctor Torres from Magallanes.

[11] These events even transcended beyond football by provoking complaints from the President Michelle Bachelet, the Chilean consul in Toronto and Human Rights Watch director José Miguel Vivanco.

[12] After Chile U20's performance in 2007 FIFA Youth World Cup, he was the candidate to replace Nelson Acosta in the adult national team.

[15] Likewise, according to journalist Francisco Sagredo, this option didn't prosper because Sulantay would have broken the confidentiality pact by telling this possibility to media.

[22] Sulantay had five children – José Carlo, Marcelo, Paula, Marco Antonio [es] and Carolina – along with his wife, Marcia Olivares.