A Blake Austin field goal on the buzzer has handed the Sea Eagles their fourth consecutive defeat to open the season.
The 27-26 loss has the Sea Eagles sitting at the bottom end of the table and in desperate need of a win.
After conceding back to back tries at the mid-point of the first half, the Sea Eagles were able to claw their way back courtesy of a pin-point kick from halfback Jack Littlejohn that found the chest of winger Matt Ikuvalu in the corner.
Trailing by eight, hooker Jayden Hodges saw an opening in the Tigers defensive line and darted out of dummy-half to send fullback Clinton Gutherson untouched under the posts.
On the stroke of half time, Sea Eagles winger Jayden Horo handed his side the lead after taking an intercept on his goal line to run the length of the field and score in the corner.
Despite trailing early, the Sea Eagles found themselves in front by two, and their lead grew just minutes into the second half when James Hasson crashed his way over after some creative second-phase passing.
However, the home side were able to close the margin to just two when centre Asipeli Fine scored in the corner, and from the ensuing set the Tigers marched their way down field to regain the lead as Taqele Naiyaravaro dived over.
When Horo went over for his second of the afternoon, the Sea Eagles managed to hold onto their four-point lead, until an intercept from Tigers winger Marika Koroibete put his side in prime position for an equaliser.
With just three minutes remaining, the Tigers drew level with the chance to take the lead with a sideline conversion but were unable to do convert.
However, with seconds on the clock, Tigers five-eighth Blake Austin slotted a field goal from 30 metres out to snatch victory.