Former Thailand coach Kiatisak Senamuang has hailed Alfred Riedl as a nice gentleman after the Austrian passed away on Tuesday.
Riedl died after a long battle with cancer in his home country. He was 70.
"My deepest condolences to the family & friends of Alfred Riedl, former Indonesia, Vietnam and Laos national team coach. He was a kind and nice gentleman to me. May you rest in peace," Kiatisak wrote on social media.
Kiatisak's Thailand faced Riedl's team on several occasions.
Leo Windtner, president of the Austrian Football Association, sent his deepest condolences, saying that Riedl was a brilliant footballer during his playing career and also did a great job as a coach abroad.
Riedl was one of the most well-known foreign coaches in Southeast Asia.
He had several stints with the national teams of Vietnam, Indonesia and Laos.
The Austrian's last job in the region was with the Indonesian national side.
Unfortunately, he was a nearly man in Southeast Asia.
Under him, Vietnam finished runners-up three times in the SEA Games and once each in the Southeast Asian Championship and the King's Cup in Thailand.
Indonesia also came second in the Southeast Asian Championship twice.
He also coached Palestine and clubs in Asia and elsewhere.
He coached Austria for eight games from 1990-1991, including a failed bid to qualify for the 1992 European Championship before moving to Asia.
He was a successful player at Austria Vienna, winning the Austrian league twice and the Austrian Cup.
The former Austria international was the top scorer in the Austrian league in the 1971-72 season and in the Belgian league in 1972-73 and 1974-75.