|First half action|
The home side cheered on by their orange clad supporters, started brightly with Ronnachai and Gasmi having half chances in the opening minutes.
Meanwhile, Tero were knocking the ball around nicely without really testing Jakkaphan in the United goal.
The breakthrough for the away side came in the 27th minute when Cleiton Silva shrugged off Mario da Silva too easily before running 35 yards to score the opener.
Sho Shimoji's shot skimmed off the face of the home side's bar while Mario da Silva headed a free kick from 12 yards narrowly over as the Fire Dragons held a 1-0 advantage at the break
The opening period had been been ticking over nicely, yet it moved up a notch shortly after halftime when BU made a positive substitution bringing on attacker Paul Ekollo for midfielder Tony Costa.
On 62 minutes, the positive change brought a goal when Ronnachai crossed to Sompong in the box who controlled, turned and fired home into the bottom corner.
That lead only lasted three minutes though. Cleiton flicked on to Wichaya who ran down the flank and squared for sub Rangsan to net.
A couple of minutes later, United thought they'd levelled again but the linesman's flag ruled out Chatchai's slide in.
However in their next attack, Bangkok United where awarded a penalty when Apiwat left out a leg that Sompong gladly tripped over.
Romain Gasmi was the man on spot kick duty and he hit the penalty to the right to make it 2-2.
The home side could have taken the lead in the 75th minute after a lovely move down the left, but Chatchai's shot skewed wide of the target.
The winning goal came two minutes later with Arzu finding the corner of the net after a precise free kick from just outside the box.
That goal was to prove to be the winner although BEC Tero's coach was sent to the stand five minutes from time after kicking a water bottle towards the linesman during a bout of frustration.
In my opinion both teams are probably a couple of players short of reaching their target this season; Tero's to win the TPL title and Bangkok United's to avoid a relegation battle. I'm not saying that the Angels will go down as they have some talented attacking players. Their weakness appears to be defensively and they give the impression that they'll ship a few goals this season.
Man of the Match: Arzu - The heartbeat of the BEC Tero side
|New away end at Thai Japanese|