[2] He had vast experience in coaching international football, having managed the likes of Sri Lanka, Vietnam, Mali, Ghana and Gabon over a career that spanned more than half a century.

However, he is best remembered for his time with Malaysia in the early 1980s, when he led the national team to qualify for the 1980 Olympic Games.

[3] He was also a popular figure in the Malaysian league, where he had some domestic success over his multiple stints with Perak,[4] the last being his role as coach and technical advisor in 2016.

[8] Weigang's role in the 1980 Olympic qualification became the inspiration of the character Harry Mountain (played by Mark Williams) in Ola Bola, a widely acclaimed Malaysian sports film in 2016.

[6][9] Weigang had a contract with Perak until June 2017, but was "rested" since February as he left for Germany for an eye surgery and a football course.