Career
Duy Mạnh has represented Vietnam at various youth levels and was he called up to senior team in 2015 at the age of 19. Duy Mạnh is one of most promising young football player in Vietnam at the moment. Born on 29 September 1996 in Đông Anh District, Hanoi.
Duy Mạnh idolised Cristiano Ronaldo since his childhood.
He started play football around the age of eight. In 2006, at the age of ten, he started trainning at Hanoi football training center and then transferred to Hanoi T&T F.C. later on in 2013.
On December of the same year, Duy Mạnh along with his club mate Phạm Đức Huy had a trial with J2 League club Consadole Sapporo. Hanoi T&T F.C.
Duy Mạnh was promoted to Hanoi T&T F.C. first team from 2015 season.
On 4 January 2015, Duy Mạnh made his debut for Hanoi T&T F.C. in V.League 1 at the first round game against Đồng Tâm Long An F.C., came in as a subtitude and scored the equaliser at he 71" minutes.
He since then became a regular for the starting eleven. Vietnam under-19
Throughout 2013 to 2014, Duy Mạnh was frequently called up to U-19 team He putted on a solid performance when replacing injured captain Lương Xuân Trường at 2014 AFC U-19 Championship qualification, but he was dropped from the squad later on in the final tournament.
Vietnam under-23
Duy Mạnh was called up to U-23 team in March 2015 for 2016 AFC U-23 Championship qualification but his injury kept him out until the last group game against Macau.
Vietnam national team
He played the whole game and his performance was praised by the media.