All signs had been pointing towards Sezer spending a second season with the Tigers, even though he likely would have been out of the first-grade set-up.
The club will welcome Jarome Luai from the Penrith Panthers for next season, while Latu Fainu and Lachlan Galvin continue to develop and shape as the most likely options to partner him from Round 1 next year as Benji Marshall continues in his attempt to rebuild the club.
But it was never guaranteed.
Sezer only had a mutual option in his contract for 2025 after signing on with the Tigers for 2024 originally, and News Corp is reporting he is now unlikely to take up that option and instead will make the switch to Hull FC.
Jordan Rapana, who reportedly informed teammates this week that he too will be joining the John Cartwright-coached team, will probably meet him there.
With the Tigers hoping to avoid the wooden spoon in the last few weeks of the season, the halfback has had a challenging first season.
The 33-year-old has participated in 17 games this season, kicking for an average of 265 meters per game and contributing eight try assists, but he hasn’t been able to improve the Tigers’ situation.
A former Gold Coast Titan and Canberra Raider between 2012 and 2019, Sezer left the NRL in 2020 to join the Huddersfield Giants, before also playing at the Leeds Rhinos in 2022 and 2023.
He has 62 games of experience in the Super League, and a move back to the competition could see him end his career in England.
He will be tasked with turning around the struggling Hull club, which sits 11th in this year’s Super League competition.