Metcalf didn't take part in Wednesday's practice due to a hand injury, John Boyle of the Seahawks' official site reports.
After a measly 3-29-0 receiving line on four targets in a Week 1 win against the Broncos, Metcalf broke out this past Sunday in New England, securing a 56-yard touchdown as part of a 10-catch, 129-yard performance on 14 targets. It's unclear if his current health concern is threatening his availability for Sunday's contest against the Dolphins, but the next two days of practices likely will help give a sense of his chances to suit up.