The Dolphins still have the NFL investigation hanging over their heads and this week the league was at the practice facility asking questions. It was expected to be a huge distraction... The Dolphins also have injury issues with Pouncey and Patterson. ... On the other hand, Carolina not having Johnson at DE is a major blow. Carolina, which played on Monday, is on a six-game win streak; the Dolphins have lost four of their last six games... Dolphins coach Joe Philbin will be challenged to keep his team focused. They're 2-1 since OT Jonathan Martin left on Oct. 28, and 1-1 since LG Richie Incognito was suspended on Nov. 3.