ESPN's Adam Schefter reports that Terrell Suggs' "upper arm injury" is a torn biceps.
Schefter adds that Suggs is expected to miss some time, but it is not believed to be a season-ending injury at this point. Suggs tweeted on Monday that he is going to get a second opinion on the injury, so we should know more by Tuesday or Wednesday. For what it's worth, Dolphins LB Karlos Dansby is currently playing through a torn biceps, so that's the good news. The severity of the tear will determine how much time Suggs misses.