The NFC West had a slight shakeup yesterday with divisional games for all four teams. The 49ers have reclaimed the first place spot thanks to their wild finish against the Los Angeles Rams. The win gives the 49ers some wiggle room this week when they take on the Seahawks. Beyond them having the first seed this week, the first place standing means nothing until Sunday.
The 49ers can lock things up with a win in Seattle OR a tie. If the 49ers tie, they can still miss out on the first seed depending on how the rest of the conference works out, but a tie is definitely in play now.