Fireworks at Ford Field

Posted by ESPN.com's Kevin Seifert
DETROIT -- Things just got really interesting at Ford Field.

Minnesota right end Jared Allen limped off the field with an apparent left knee injury. But before he got off the field, Allen had to be held back from attacking Detroit right tackle Gosder Cherilus -- who caused the injury by cutting Allen below the knee on a pass rush.

No penalty was called, but Allen was livid and had to be restrained by teammate Ray Edwards.

On the next play, Lions fullback Moran Norris was ejected for punching Minnesota linebacker Napoleon Harris.

The series of plays has definitely ratcheted up the intensity here at Ford Field.

The Lions are threatening to expand a 6-3 lead here at the end of the second quarter, courtesy another interception of Gus Frerotte. (This one was tipped by Shaun Cody into the hands of Corey Smith).

Allen was initially replaced by Otis Grigsby but has since returned.

Meanwhile, Frerotte has come up with a lower back injury. We'll keep you updated.