Thai League 1 champions BG Pathum United returned to winning ways on Friday night when they beat Ratchaburi 2-0.
Chenrop Samphaodi opened the scoring for the hosts after 48 minutes and his strike partner Teerasil Dangda added the other in the 54th minute.
The Rabbits are leaders with four points from two games.
It was a relief for coach Aurilio Vidmar who tasted his first T1 win in his second stint as coach of Pathum who were held to a 1-1 draw by Chonburi in their season opener last week.
The Australian coach succeeded Dusit Chalermsan who quit after steering the Rabbits to their first ever T1 title last season and is now at Port.
Vidmar has already guided Pathum past the AFC Champions League group stage after taking the job a few months ago.
BG dominated for long periods against the Dragons, although Vidmar was without several key players including defenders Victor Cardozo and Andres Tunez and prolific striker Diogo Luis Santo.
Strikers Teerasil and Chenrop proved an effective partnership which caused trouble for the visitors.
Meanwhile, True Bangkok United and Port's title credentials will be tested when they meet at Thammasat Stadium in Rangsit on Sunday.
It will also be a battle between Bangkok coach Totchtawan Sripan and Port boss Dusit, who were members of Thailand's Dream Team in the 1990s.
Totchtawan, formerly known as Tawan, and Dusit were two of the best Thai players and now are two of the most respected coaches in the country.
Totchtawan, 49, guided SCG Muang Thong to the T1 title a few years ago while Dusit, 51, won the crown with BG last season.
While Bangkok United won at Chiangmai in their season opener last week, Port had to rally from 3-1 down to draw 3-3 with Police Tero.
Bangkok's strike force will be spearheaded by Brazilian Heberty Fernandes, while Port's attack will be led by Spanish forward Sergio Suarez.
Both scored twice for their teams in their season openers last week.
Dusit will seek his first win in his second spell as coach of Port.
Also on Sunday, newcomers Nongbua Pitchaya will want to prove that their win over Nakhon Ratchasima in their first ever T1 match last week was no fluke when they host Samut Prakan City.
In Saturday's action, former champions Buriram United will try to bounce back from their lacklustre home draw with Suphanburi last week when they meet Police Tero.
Buriram coach Alexandre Gama will be hoping that his attackers Suphanat Mueanta, Supachai Chaided and Supachok Sarachat return to form in this game.
Muang Thong entertain Chonburi as both seek their first win of the season following draws last week.