Early thoughts from San Diego

Posted by ESPN.com’s Bill Williamson

SAN DIEGO -- We’re early in the second quarter with the game tied 10-10.

Some observations:

San Diego ran 21 offensive plays compared to Denver’s 5.

Denver nose tackle Ronald Fields is out with a hamstring injury. His return is questionable.

San Diego running back LaDainian Tomlinson is running well. He had 28 yards on seven carries.

The Chargers are not afraid to go after star Denver cornerback Champ Bailey. Philip Rivers is throwing at him.

The pregame bad blood carried over to the field. Rivers and Darrell Reid went at it verbally early in the game. Later, Denver receiver Brandon Marshall put his finger in the face of San Diego safety Steve Gregory.