What happened: Grey Zabel will shift from left guard to right guard, with Bradford serving as the primary backup at both spots. Coach Mike Macdonald called the decision "not an easy situation" and said Bradford had earned a starting-level role.

Why it matters: Fewer snaps could make it harder for Bradford to earn a new contract. Seattle is 4-3 and holds the NFC's eighth seed.

What to watch: Monday's game will be the first test of the reshuffled guard pairing.