Curtis Sironen

😤 A fearsome edge player, ‘Siro’ shows plenty of aggression on both sides of the ball

The Sydney-born forward is the son of Balmain Tigers legend and former Australian International Paul Sironen.

Curtis made his NRL debut with the West Tigers back in 2012 at the age of 18 where he would stay until 2016 when he joined the Manly Sea Eagles. Over his ten seasons in the NRL he registered 131 match appearances, scoring 25 tries.

In his first campaign with St Helens, the back-rower made 24 appearances, scored three tries, and established himself as a fearsome edge player with strong running and plenty of aggression in both defence and attack. Sironen helped the Red V return to Old Trafford to secure a fourth successive Super League title in what was his first Grand Final appearance.

Big ‘Siro’ set up the opening score of the 2023 World Club Challenge for Jack Welsby, as we went on to bring home the trophy in a historic victory over Penrith in their own backyard.

The powerhouse second-rower put pen to paper on a contract extension during 2023, keeping him a Saint until the end of 2025.

Proving himself to be one of Super League’s best back-rowers, the towering Aussie takes some stopping and can get an offload away. During the 2024 season he showed himself to be a leader on the field, especially when the squad was down on troops in the middles.

Heading into his fourth season in the famous Red V shirt, ‘Sizzler’ was issued a new squad number for the first time – taking the #11 shirt after previously wearing #16. Curtis began the 2025 season with his 200th career appearance, adding a score in our record setting 82-0 win over Salford Red Devils.