Rob Ninkovich

Patriots' Rob Ninkovich to undergo MRI for triceps injury

New England Patriots defensive end Rob Ninkovich left Tuesday's practice with a triceps injury, and will undergo an MRI.

What It Means:

We don't have any indication of the severity of the injury, but it's a situation worth monitoring, as Ninkovich has been a cornerstone of the Patriots' defense for years, having started every game over the past five seasons.

The Patriots defense finished 12th in schedule-adjusted Defensive Net Expected Points in 2015, after finishing in the top-10 in 2014.