Speaking at the Leaders sports conference, Masters said: "We are talking to our clubs about an alternative system. That's not to say we don't think the PSR system works. It's about closer alignment with European regulation, which is squad cost ratio, which is a revenue test.
"The PSR is a look-back profitability test and has its own strengths and weaknesses. No system will be perfect. We have to keep these things balanced and continue the conversation with our clubs, and that's an important decision, so we should take the time to get it right. But that decision is coming up."