Receiver Saubert executed the game-winning two-point conversion for the Seahawks.
Seattle staged a stunning fightback to defeat the Rams in extra time, clinching their spot in the NFL play-offs.
Overcoming a 30-14 hole in the final period, the Seattle squad triumphed 38-37 at home, registering their fifth straight victory.
While the Los Angeles had already secured a post-season spot earlier on game day, the Seahawks booked their return to the play-offs after a two-year hiatus.
With this outcome, the Seattle have taken over their division's race with a 12-3 record, replacing the Los Angeles, who dropped to the number five playoff position with an eleven and four record.
Signal-caller Darnold had two picks but regrouped to deliver two touchdown passes, culminating in the second score to star receiver Jaxon Smith-Njigba in overtime.
The visitors held a six-point lead at half-time before Walker broke free for a long scoring dash for the home side.
Rams defensive back Josh Wallace then returned Darnold's first interception for 56 yards, leading to a short touchdown by Corum on the ensuing snap.
In the final stanza, a touchdown from Matthew Stafford to Nacua pushed the Rams' lead to 30-14, but Rashid Shaheed provided Seattle's comeback with a spectacular return for a score.
Darnold then connected with AJ Barner in the endzone, and a converted conversion forced the contest into an extra period.
Although Puka Nacua raced in for his another TD in OT, Smith-Njigba responded in kind to set up the decisive conversion.
A passionate travel writer and lifestyle coach who shares her global adventures and wellness tips to inspire others.
Tim Williams
Tim Williams
Tim Williams
Tim Williams