Maroons Coach Kevin Walters made the announcement on Monday, December 17th.
Martin (25), who grew up in Queensland, has been a strong performer for the Kumuls, especially during the 2017 World Cup.
This season he achieved his goal of playing in the NRL, with a memorable debut against the Brisbane Broncos in Round Nine, where he scored a try with his very first touch of the ball.
Macdonald debuted with the Roosters as a 20-year-old in 2014 and has emerged as one of competition’s top wingers during his stints with the Titans and Dragons.