Seattle Seahawks head coach Pete Carroll runs on the field during warmups before a preseason NFL football game against the Dallas Cowboys, Thursday, Aug. 25, 2016, in Seattle. (AP Photo/Elaine Thompson) — Elaine Thompson

A number of our sources were left scratching their heads over the Labor Day weekend when they got their first look at the Seattle Seahawks final 53-man roster and saw it included 15 rookies.

When was the last time a preseason Super Bowl favorite had 15 rookies on its roster? It’s a really tough one to research but working from memory, we’d say there’s a good chance the answer is never.