Brisbane have been fined for breaching the AFL's salary cap during the 2010 season.

The AFL has slapped the Lions with a $21,630 fine for an administrative error, which the club voluntarily disclosed once it was discovered.

AFL football operations manager Adrian Anderson said the club's full co-operation had been taken into account regarding the penalty.

Brisbane said it accepted the sanction.

"The Brisbane Lions have implemented a number of additional compliance measures and procedures since last year to ensure future administrative errors are avoided," the club said in a statement on Friday night.

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