The club then broke its preliminary final hoodoo by beating rivals South Sydney 12–4 in what was the last sports match ever played at the Sydney Football Stadium. They managed to keep Souths tryless, and the crowd was the largest ever recorded in a sporting match at the Sydney Football Stadium with 44,380 people in attendance. The Roosters played Melbourne in the 2018 NRL Grand Final, and won 21–6 to claim their 14th premiership.
