Ryan Brierley has helped Leigh win the past two Championship titles

Leigh Centurions half-back Ryan Brierley will officially leave the club in four weeks after handing in his notice on Monday, according to Sky sources.

The 23-year-old, who scored 37 tries in 33 appearances for the Centurions in 2015, had an agreement enabling him to leave the Championship club if head coach Paul Rowley ever left.

The clause emerged after Rowley resigned last month but owner Derek Beaumont insisted at the time the player would not be leaving.

"It would never happen but, if Leeds came in tomorrow and said 'here's £100,000 for Ryan', I'd say 'no thanks'," Beaumont said.

"I had no knowledge of that clause but, having been made aware of it, I took legal advice and that was that, if it was a private agreement, it would not enforceable anyway because of the manner it was written.

"More importantly, any supplementary clause must come from the RFL clause bank.

"It isn't a concern anyway because Ryan is not trying to enforce it. He's not going anywhere."