Brierley took his try tally for the new season to eight in just two matches, after running in five in the 52-8 win at Barrow, while Rochdale’s Matty Dawson’s individual effort against Dewsbury saw him handed the Try of the Week.
Every week each coach in the Kingstone Press Championship is contacted to help put the awards together.
Brierley claimed a hat-trick against Batley Bulldogs in round one, before scoring twice in the first half against Barrow and touching down three more times after the break.
Leigh coach Paul Rowley said: “Ryan was very good against Barrow. He’s still got a long way to go, but the best thing about him is that he knows that and is prepared to work hard.
“He’s very humble and has his feet on the floor. He’s a young lad learning his trade and having fun.”
Rowley added: “Ryan’s been on a journey since he joined our club and he’s really starting to show how he’s matured and developed as a player. This year we’re seeing a whole new and improved Ryan.”
Dawson, 23, is playing for Rochdale on a dual-registration agreement with St Helens.
Rochdale coach Ian Talbot said: “Matty started slowly yesterday, but he’s capable of producing moments like that of individual brilliance.
“I’m sure he’s got a bright future ahead of him if he gets his head down and works hard. His pace and footwork is outstanding, and he’s a big threat on the edge.”