• Source: Jeferson Farias Valentim

Marcos Jeferson Farias Valentim (born 29 January 1982), also known as Nguyễn Trung Sơn, is a Brazilian former footballer who played as a midfielder.
After retiring from professional football, he worked at a hotel in Brazil.
Valentim was born and raised in Brazil, where he had a wife and children. He later became a naturalized Vietnamese citizen and married a Vietnamese woman.




References

Kata Kunci Pencarian:

• Jeferson Farias Valentim
• List of foreign footballers in Vietnam
• 57th Legislature of the National Congress
• Portuguese name
• List of Pan American medalists for Brazil
• 2007 South American Junior Championships in Athletics