Receiver Saubert executed the decisive two-point play for Seattle.
Seattle staged a stunning comeback to defeat the Rams in extra time, securing their spot in the postseason.
Overcoming a 30-14 deficit in the final period, the Seattle squad triumphed by a single point at home, registering their fifth straight win.
While the Los Angeles had already secured a playoff berth earlier on Sunday, the Seattle team booked their return to the play-offs after a two-year hiatus.
With this outcome, the Seahawks now lead their division's standings with a twelve and three record, replacing the Los Angeles, who fell to the number five seed with an 11-4 standing.
Signal-caller Sam Darnold had two picks but regrouped to deliver two scoring throws, including the tying TD to star receiver Jaxon Smith-Njigba in the extra period.
The visitors held a six-point advantage at half-time before Kenneth Walker III broke free for a long touchdown run for the home side.
Los Angeles cornerback Josh Wallace then returned Darnold's initial interception for 56 yards, leading to a one-yard score by Corum on the ensuing snap.
In the final stanza, a touchdown from Matthew Stafford to Nacua extended the advantage to 30-14, but Shaheed provided Seattle's hope with a 58-yard punt return.
Darnold then connected with Barner in the endzone, and a successful conversion forced the contest into overtime.
Although Puka Nacua raced in for his second TD in OT, Jaxon Smith-Njigba answered in kind to set up the decisive conversion.
Elena is a freelance writer and mindfulness coach who loves exploring the power of positive thinking.