Matthew Stafford, Cooper Kupp and Demarcus Robinson explain how the Rams' game-winning touchdown against the Seahawks unfolded

SEATTLE – Matthew Stafford admitted after the game that he didn't know before the snap that he was going to throw the ball on what was arguably the most important play of Sunday's game.

“But sometimes things like that happen,” the Rams quarterback said. “You come out clean and D-Rob does a great job winning at the point, then stopping it and then catching it.”

That clean look led to the game-winning walk-off touchdown – a 39-yarder to wide receiver Demarcus Robinson that helped the Rams to a 26-20 victory over the Seahawks.

Wide receiver Cooper Kupp said the intent of the game was to “give Matthew the lead” and “give him a chance to make a play and do something sweet.” Kupp securing the edge was the catalyst for Stafford's decision to make that throw to Robinson.

“After I saw it, I just made myself available,” Kupp said. “This ball is very rarely thrown in this direction. D-Rob did a great job off the line of scrimmage, and when he set that angle high, I just couldn't believe it when I saw Matthew turn his hips. I said, 'Oh, he's about to let this thing go.'”

Just as impressive as the pass was Robinson's one-handed grab at the end, although he wasn't going for style points.

“I was just trying to stop the guy because he (Seahawks cornerback Riq Woolen) was kind of catching up,” Robinson said. “Woolen is pretty quick so he caught up with the ball. Because, you know, the ball needs a little distance to get to me. So he caught up. So I thought, 'Okay, just let me stay.' “My arm out,” and he started holding onto my arm so I only had one arm to try to make a play.”

“When I threw it, you know, D-Rob's body language, I thought, 'Oh no, I underestimated it,' I thought I might have thrown a bowl under his body language,” Stafford said. “He did a great job holding him back.”

It was a fitting end to a game-winning drive that began with two explosive completions from Stafford: an impressive 24-yarder to wide receiver Tyler Johnson, followed by a 16-yarder to wide receiver Tutu Atwell. Stafford said Johnson did a good job of getting ahead of Woolen and said he had “no other options” on that throw, the timing of which narrowly prevented an interception by an incoming Seahawks defender. Stafford also praised Atwell for the great job he did separating himself from his defender on that comeback path.

It was also a worthwhile end for a Los Angeles defense whose 4th^Th-Down, redzone stop in overtime started this drive after having to make up for some of the challenges the offense endured in the first half and parts of the second half.

“It’s our turn, man,” Robinson said of the offense’s attitude when it got the ball after that stop in overtime. “The defense did a great job stopping us and giving us the ball back. Now it's our turn to put points on the board. Either we score, get three points and end the game, or we don't let the kicker do it.” So we tried to score a touchdown so it could be over.