Ngombo has played in Qatar since 2006 after playing for the Inter Club Brazzaville in his home nation of the Congo. In 2011, he helped Al Rayyan win the Qatar Basketball League.[5] He led his team in scoring and rebounds, averaging 20.7 points and 8.9 rebounds per game.[6] He then helped Al-Rayyan finish third in the FIBA Asia Champions Cup while averaging 16.3 points per game.[7]
Ngombo has represented the Qatari national team since 2010. He played in the 2010 FIBA Asia Stanković Cup, helping Qatar win the bronze medal.[8] He played in all 7 games and led the team in scoring in every game with an average of 30.0 points per game.[9] He then played for Qatar in the 2010 Asian Games in Guangzhou, China. He played in all 8 games, averaging 19.6 points per game as Qatar finished in 5th place.[10]
At the 2011 NBA draft, he was selected as Targuy Ngombo, who was a soon-to-be 22 year old player born in 1989. After the draft, reports surfaced claiming that Ngombo lied about his name and his birth date and that he was actually born in 1984, which would have made him ineligible for the draft.[16][17][18][19] The NBA rules state that an international player who is over the age of 22 is not eligible for the draft and must be signed as a free agent.[20] Additionally, the use of the name Targuy was a misspelling; he was often listed under that name in several FIBA competitions.[12][13][14] His trade to the Timberwolves, which was first reported on the night of the draft, was reportedly being held up for several days because of the age discrepancy.[3][21]