Wellington Phoenix have defeated Brisbane Roar on Sunday at Suncorp Stadium in an A-League clash.

Brisbane Roar interim coach Frans Thijssen has lashed out at the "crazy" abandonment of his side's rain-drenched clash with Wellington Phoenix, saying current A-League regulations are not in the spirit of "honest competition".

The Phoenix claimed a 2-1 comeback victory over the Roar on Sunday, but the match was called off in the 73rd minute by referee Alan Milliner due to monsoonal conditions and a heavily waterlogged pitch at Suncorp Stadium.

In accordance with A-League rule 22.22, as the game was abandoned in the second half, the result at the time stood - handing a critical victory to Wellington, who are now four points clear on top of the competition ladder.

It is the first time an A-League match has been abandoned in such fashion.

But Thijssen was incensed with the circumstances of the finish, the lack of scope for a replay and the fact Milliner made the decision just as Roar midfielder Luke Brattan was eyeing off goal from a free-kick just outside the box.

"If you've always worked in Europe and you see this happening ... I've never seen this," he said.

"The choice is replay if it happens in the first half, they're the normal rules and if it happens in the second half, you have to play the second half again.

"Adelaide and Perth, they're not happy with this ... we are in a competition to go to the playoffs.

"We have a free-kick in a dangerous position where we can score, then they just call off the game and give three points to one team and no points to (the other) team.

"That's not an honest competition."

A livid Thijssen also took aim at the fact that the A-League does not stop for international breaks.

Roar quartet Matt McKay, Luke DeVere, Corey Brown and James Donachie will all miss Wednesday night's match against Western Sydney due to Socceroos or Olyroos duty.

"They planned this game this week when the national team is playing. That's another strange thing," he said.

"If you (want) an honest competition you don't plan it this week when the national team is playing because you know Brisbane Roar lose four players who are normally in the team."

Brisbane's Andrija Kaluderovic put the home side ahead after just five minutes, poking in a cross from left-back Corey Brown to complete a clinical counter attack from the Roar.

But it was a short-lived lead, as Michael McGlinchey finally restored parity for the dominant Phoenix after 15 minutes.

All the credit for the goal should go to Socceroos forward Nathan Burns, who cut out five Brisbane defenders on a scything run before feeding McGlinchey with the ball.

Then just moments before the half-time whistle, Burns pounced to put Wellington 2-1 up, tucking away a shot from Roy Krishna that rebounded off the upright.

The match was threatening to descend into farce as the rain progressively worsened in the second half.

"It was controversial but they're the rules," Phoenix coach Ernie Merrick said.

"Both teams would have enjoyed to play a full game but you just can't play in that weather."