Halftime notes from San Diego

Posted by ESPN.com’s Bill Williamson

SAN DIEGO -- Denver coach Josh McDaniels has shown before that he is an excellent second-half adjuster. He’ll need to do so again as San Diego leads 20-17 in what has been a fantastic game.

Denver has outscored opponents 59-7 in the second half this season. The 20 points are the most Denver has allowed all season. Denver allowed 10 points in the first quarter for the third straight game.

Denver left tackle Ryan Clady gave up a sack to San Diego rookie Larry English. Clady has allowed sacks in the past two games. He went his first 20 games without allowing a sack.

Denver’s defense is getting beat up. Linebacker Mario Haggan is out with a knee injury and he is questionable to return. Safety Brian Dawkins (hamstring) and defensive tackle Ronald Fields (hamstring) are also out and questionable to return.

If Dawkins remain out, expect San Diego to try to go to tight end Antonio Gates often. He was featured late in the second quarter.

Expect English to get fined for a horse-collar tackle late in the first half.

ESPN’s John Clayton is reporting that Kansas City traded defensive lineman Tank Tyler to Carolina for a fifth-round pick.