Complex sentence: Michael Umeh (born 18 September, 1984, Houston, TX) is an American professional basketball player that is a dual citizen of the United States and Nigeria due to his parents, Ike and Edith, being immigrants to the United States from Nigeria.
Split into simpler sentences: Michael Umeh (born 18 September, 1984, Houston, Texas) is an American professional basketball player. He is a dual citizen of the United States and Nigeria because both of his parents immigrated from Nigeria.