Brisbane are counting the cost of a fiery derby against the Dolphins after Jordan Riki was charged by the match review committee.

Riki was slapped with a grade-two careless high tackle after his shoulder collected the head of Dolphins winger Jack Bostock in the 39th minute of the Battle of Brisbane at Suncorp Stadium on Friday night.

The back-rower was fortunate to stay on the field after Bostock went off for an HIA, which he passed.

The Broncos will likely not risk a three-week suspension by fighting Riki's charge. His place in the team for next Saturday night's home clash with Wests Tigers will likely be taken by bench back-rower Brendan Piakura.

New Zealand international Riki had his best game of the season against the Dolphins where he ran for 150m, made a line break and five tackle busts, along with 33 tackles.

The Broncos have been able to select the same starting pack for the opening four rounds but will now be forced into an adjustment if they elect not to fight the charge.

Piakura has been playing off the bench in the opening four rounds and has had limited minutes.

He did put a cracking shot on Dolphins centre Herbie Farnworth in the closing minutes of the derby to remind his former teammate of his wares.

The Broncos defeated the Dolphins 20-12 at Suncorp Stadium on Friday.

Joe Gould - AAP