Richmond youngster Reece McKenzie retires from the AFL after battling mental health issues.

McKenzie was placed on the Tigers' long-term injury list in May and spent extended time away from the club to deal with the condition.

Richmond issued a statement on Thursday saying McKenzie has applied to play with Marcellin Old Collegians in the VAFA.

"The club understands Reece's decision and wishes both him and his family all the best in his football career and future endeavours."

Travis King for AFL.com.au