ENGLEWOOD, Colo. » Rookie quarterback Tim Tebow’s first foray into an NFL end zone might have left him with injured ribs.

Denver’s rookie quarterback missed practice yesterday. While the Broncos aren’t saying what’s wrong with him, Tebow might be feeling the effects of his game-ending 7-yard touchdown run in his pro debut Sunday night.

After absorbing several hard hits, Tebow powered his way into the end zone on the game’s final play, smacking into Bengals linebacker Abdul Hodge to the goal line and bowling over Kyries Hebert, leaving the safety woozy with his mouth guard lying on the ground at his feet.

Haynesworth misses another practice

Redskins defensive tackle Albert Haynesworth missed another practice, this time with dehydration. Haynesworth stood to the side, flipping through the pages of his play book.

He missed the first nine days of camp because he failed a conditioning test.

Cowboys LG Kosier sprains knee

Cowboys left guard Kyle Kosier is expected to miss at least a month because of a sprained knee, making it two offensive linemen the club has lost to injuries this week.

Kosier went down yesterday, two days after right tackle Marc Colombo had knee surgery. Coach Wade Phillips said it appears to be the same injury that’s sidelined defensive lineman Marcus Spears for four to six weeks.

Lions get DE Jackson from Seahawks

The Seahawks traded defensive end and 2008 first-round pick Lawrence Jackson to the Lions yesterday for an undisclosed draft choice in 2011.

A day after Jackson admitted he was in limbo in Seattle, the Seahawks announced they had traded him away. Seattle general manager John Schneider was not on the job when the Seahawks drafted Jackson out of Southern California.

Neither was Pete Carroll, Jackson’s former coach at USC. The Seahawks are installing schemes that call for ends to be run stuffers or fast pass rushers, and Jackson has been neither.