Tight end Saubert made the game-winning two-point conversion for Seattle.
Seattle staged a stunning comeback to overcome the Los Angeles Rams in extra time, clinching their place in the postseason.
Overcoming a sixteen-point deficit in the final period, the Seattle squad emerged victorious 38-37 at home, notching their fifth straight victory.
While the Los Angeles had already secured a post-season berth earlier on Sunday, the Seattle team booked their return to the postseason after a 24-month hiatus.
With this outcome, the Seahawks have taken over their division's race with a twelve and three mark, supplanting the Los Angeles, who dropped to the number five playoff position with an eleven and four standing.
Signal-caller Sam Darnold threw two picks but recovered to deliver two scoring throws, including the second score to star receiver Jaxon Smith-Njigba in the extra period.
The Rams held a six-point advantage at the break before Kenneth Walker III burst through for a 55-yard touchdown run for the home side.
Los Angeles defensive back Josh Wallace then returned Darnold's initial interception for a big return, leading to a short touchdown by Corum on the ensuing snap.
In the final stanza, a touchdown from Matthew Stafford to Puka Nacua pushed the advantage to 30-14, but Rashid Shaheed ignited Seattle's comeback with a 58-yard return for a score.
Darnold then found AJ Barner in the end zone, and a successful two-point play forced the contest into overtime.
Although Puka Nacua scored for his second TD in overtime, Smith-Njigba answered in kind to set up the game-winning score.
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