Brisbane defender Marcus Adams will undergo arthroscopic surgery on Monday in an effort to fix a persistent knee injury.

General Manager of Football David Noble said the surgery was required to fix a previous injury.

“Marcus had been close to returning the past few weeks, however there is a slight impingement issue in his knee that is restricting him getting back to 100%,” Noble said.

“He has completed 90% of his rehab program, predominantly straight-line work and the issue is when we have increased his agility work.

“This operation should alleviate that, and we look forward to seeing him out on the field around the bye.”

Adams is expected to miss between 6-8 weeks.