Selector Darren Lockyer admits a better system should be introduced for the Wally Lewis Medal after the controversy surrounding Queensland fullback Billy Slater's selection as player of the State of Origin series

Lockyer was one of the three national selectors alongside Mal Meninga and Laurie Daley, who made Slater the first winner of the medal from a losing team despite him playing just two of the three matches.

Under the current system, each selector voted on a 4-3-2-1 system after each game, with the points combined to decide the series MVP.

NRL chief executive Todd Greenberg has already declared the system will be reviewed and Lockyer accepts change should be made.

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