Sein Hlaing was awarded FIFA Order of Merit in 2004 in recognition of his achievements as a coach.
[1] Sein Hlaing was born in Tamwe township in Yangon to Daw Su and U Yeit.
[2] He began playing football at a young age and appeared for the Seven Stars club while still at high school in 1938.
After his playing career ended, he took up his first coaching post with the Criminal Investigation Department club in 1952.
Sein Hlaing died of complications from diabetes on 7 May 2010 at his home at 42nd St, Botataung Township in Yangon.