Ryley Stoddart signs a one-year contract extension to remain at Sydney until the end of 2020 after just eight games into his debut season.

Stoddart says he's already learnt plenty from his mentor at the club, former co-captain and star defender Jarrad McVeigh.

"The guy has so much experience and knows more about the game than anyone I know, so I couldn't ask for a better guy to be paired with," Stoddart said.

"The whole club has been unbelievable since I arrived here, and I couldn't be happier."