Football can be a cruel game and that was epitomised on Saturday night, as the Wellington Phoenix were denied a fourth successive A-League victory with a late Adelaide equaliser.

The 1-1 draw felt like a loss, as teenager Bernado Oliveira headed home in the 92nd minute, after being left unmarked at the far post.

It was cruel, as Wellington had numerous chances to put the game out of reach, especially in the first half.

But they left the door open for Adelaide and, as they started to tire after their heavy recent schedule, the visitors found an unlikely goal.

It will be tough to take for the Phoenix, but when the dust settles they will reflect on another excellent performance.

Gael Sandoval had given them a deserved lead in the 20th minute but they couldn't extend it, due to a combination of poor finishing and some excellent goalkeeping from the Adelaide custodian Joe Gauci.

The Wellington team produced some sparkling football, particularly in the first period, with the passing and movement a delight to behold, but were profligate with numerous chances, which kept Adelaide in the match.

Sandoval produced his best performance so far while David Ball led the line superbly. Alex Rufer and Clayton Lewis were accurate and committed in central midfield and the Phoenix looked a cohesive and positive unit.

That sense of control slipped away in the final 20 minutes, as legs started to tire and they sat further back.