By ESPNSTAR.com staff
Shortly after the match at the Thunder Castle Stadium had been suspended due to floodlight problems, Cleiton Silva netted the only goal of the game in the 30th minute to hand the Fire Dragons all three points.
The defeat was also not the most ideal of preparations for Buriram ahead of Wednesday's Thai FA Cup quarter-finals, where they will entertain BEC Tero once more.
Bangkok Glass threw away a two-goal lead at home to bottom side TTM Chiangmai, a result which saw coach Surachai Jaturapattarapong resign shortly after the final whistle.
Thai international Chatree Chimtalay opened the scoring for the Glass Rabbits after just three minutes, before Japanese midfielder Hironori Saruta doubled their lead in the 55th minute.
However, Eakartit Somjit pulled one back for the visitors six minutes after the hour mark, before Leonardo Ferreira netted ten minutes from time to hand his side an unlikely point.
Finally, Samut Songkhram came from a goal down to beat relegation-threatened Thai Port 2-1.
Port edged ahead three minutes after halftime when North Korean forward Ri Myong-jun scored, but Frenchman Christian Nade equalised in the 72nd minute.
And in the second minute of injury-time, Sittipan Chumchuay found the back of the net to hand the Raging Mackerel all three points.
Saturday's Thai Premier League Results
Thai Port 1-2 Samut Songkhram
Bangkok Glass 2-2 TTM Chiangmai
Buriram United 0-1 BEC Tero Sasana