United Nations officials said that at least twice he approached American officials in an effort to cut a personal deal but was turned down.
Leitao is known for his intense coaching, as well as the way he approaches officials during games.
In late November, a delegation approached Mexican officials for the first time to promote direct government-to-government talks.
In certain instances, the officials discussed approaching governments and foreign officials in attempts to reform those groups through private diplomacy.
Next, he approached officials in San Francisco.
After approaching officials in Salt Lake City, he settled on Portland.
But the Pentagon said this week that it did not know of him until he approached officials this year through intermediaries.
They say the list is available to relatives, but many Albanians may be hesitant to approach Serbian officials to see it.
The gang members approached law-enforcement officials last winter, saying they were tired of senseless killings.
"People are more approachable, and more willing to take risks in approaching American officials."