Curtis Sironen (born 31 July 1993) is an Australian professional rugby league footballer who plays as a forward for St Helens in the Super League. He previously played for the Wests Tigers and Manly-Warringah Sea Eagles in the National Rugby League. He has also played at representative level for City Origin. Early years Sironen was born in Sydney, New South Wales, Australia and is the son of Balmain Tigers legend Paul Sironen. Sironen played his junior football with the Dundas Shamrocks. A student at Holy Cross College Ryde, Sironen captained the NSW Combined Catholic Colleges to victory in the Australian Schoolboys tournament in 2011. He represented New South Wales at an under-18 level, and played for the Australian Schoolboys side in 2011, while playing for Wests Tigers NYC team. Undergoing shoulder surgery after completing his HSC, Sironen rejoined the NYC team in round 9. Playing career 2012 With Robert Lui leaving the club at the end of 2011, Sironen was considered a possible replacement for the Wests Tigers halfback, along with players Jacob Miller, Tim Moltzen and Tom Humble. Moltzen started the season at halfback, but a number of players filled the position before Benji Marshall moved from five-eighth. Sironen was 18 years old when he made his debut from the bench against the North Queensland Cowboys midway through the 2012 NRL season. The next week he made his first appearance in the starting side, playing at five-eighth and scoring a try. Coach Tim Sheens said of him, "I've been trying to hide him as long as I can. There's no doubt he's a first grader." Sironen is the first son of a former Balmain or Wests player to get a run for Wests Tigers. Having established himself as the team five-eighth outside Benji Marshall, Sironen had played 6 games when he was injured. Coach Tim Sheens said, "Young Curtis will be out for the season and we're pretty sure he'll need another reconstruction. When you throw your arm out like he did and the guy's going in another direction, even with a good shoulder you can suffer a dislocation." Despite playing just 6 games for the year, he was named the club's joint Rookie of the Year. 2013 Returning from injury in round 6 of 2013, Sironen was initially chosen in the halves. After only one game, Sironen was a late selection (after Josh Reynolds withdrew) to play for