St George Illawarra have announced the re-signing of utility back Tristan Sailor for the 2020 season.

The Western Suburbs Red Devils junior graduated from the Illawarra SG Ball and Jersey Flegg teams in recent years, and completed the Dragons' pathway following his first grade debut in Round 23 against the Sydney Roosters.

The two-time Queensland Under-20s representative finished the 2019 season with three first grade games to his name, where he featured at both fullback and on the wing.

Sailor was also a permanent fixture in the Dragons' minor-premiership-winning Canterbury Cup NSW team last season and was rewarded with selection in the competition's Team of the Year.

"It means a whole lot to remain a Dragon after coming through the Dragons' junior system here. Being able to debut last year and continue my journey is great especially since I live local and attend the University of Wollongong," Sailor said.

"I've been able to show I'm capable of playing a number of positions now, having also experienced different positions in the NRL, so I'm looking forward to continuing that through to 2020."

An excited Director of Rugby League Pathways and List Management Ian Millward said the 21-year-old's retention was hopefully the beginning of a long and successful career at the Red V.

"We're extremely excited about Tristan re-signing for a further 12 months following his advancement last year. It was exciting to see his physical and mental development on and off the field," Millward said.

"The coaching staff have a very high opinion of Tristan as does everyone else in the organisation. He's heading in the right direction, and with the experiences of last year we're expecting him to be a vital member of our squad in 2020."

Sailor's retention follows the Dragons' signing of Trent Merrin and Issac Luke in recent weeks.