It's official #56 49ers ✊— Ferrari Foster (@ferrarifoster) May 6, 2017
He will be wearing No. 56 through the offseason workout program. It is possible the number will change when the season gets here, but 56 is a very strong number for linebackers. Lawrence Taylor is the most notable player. Chris Doleman wore it as well, including during his three years with the 49ers.
Among the 49ers, the most notable is Fred Quillan, with Doleman not far behind. Shayne Skov was the most recent to wear it, before he was released this week. We’ll have more on some of the other numbers the rest of the offseason.