The Chicago Bears lost their second preseason game, 17-13, to the St. Louis Rams -- but more importantly, they lost starting quarterback Rex Grossman for three to four months when the former Florida star broke his left ankle.

Grossman, the Bears' first-round pick in 2003, was hurt with 11 minutes 8 seconds to go in the first half after being flushed out of the pocket by Jeremy Loyd and Trev Faulk, who spun Grossman around and leveled him.

Grossman got back to his feet but began limping and signaled for a trainer. He then sat down and grabbed his left knee in pain, slamming his helmet on the cart before being taken off the field.

Bears linebacker Joe Odum also left in the second quarter with a concussion suffered in a helmet-to-helmet tackle.

* VIKINGS 27, CHIEFS 16: Daunte Culpepper opened Minnesota's preseason by guiding a 65-yard touchdown drive, leading the Vikings to a victory over visiting Kansas City.

Completing his first five passes, each to a different receiver, Culpepper found new top target Nate Burleson for a 33-yard score to cap a drive that lasted only 3:08. Culpepper finished 5 for 6 for 84 yards.

The Chiefs' Priest Holmes, whose damaged right knee cost him eight games last season, looked sharp, rushing four times for 42 yards.

* SEAHAWKS 34, SAINTS 15: Seattle's Seneca Wallace, tapped as Matt Hasselbeck's backup, scored on a slashing 24-yard scramble and passed for another touchdown in the Seahawks' victory in New Orleans.

The third-year reserve from Iowa State played from early in the second quarter through the third, completing 12 of 20 passes for 137 yards.

* JETS 10, LIONS 3: Jay Fiedler, filling in for starter Chad Pennington, capped a 98-yard scoring drive with a one-yard touchdown run in New York's home victory.

Fiedler completed 7 of 9 passes for 69 yards -- but was intercepted on his second throw -- in two series leading new coordinator Mike Heimerdinger's offense.

* PATRIOTS 23, BENGALS 13: Rookie quarterback Matt Cassel led four scoring drives as New England won in Cincinnati in the preseason opener for both teams.

Cassel never started a college game while backing up Carson Palmer and Matt Leinart at Southern California and now he is battling Doug Flutie for the third quarterback spot behind Tom Brady and Rohan Davey.

* BUCCANEERS 20, TITANS 17: In Nashville, Steve McNair scrambled and even took a hit that had fans holding their breath until he popped back up. But Tampa Bay's Matt Bryant kicked a 33-yard field goal 3:02 into overtime to win it.

The preseason opener for both teams was the first test for McNair, who missed half of the last season with a damaged sternum that made breathing painful. . . .

Michael Huyghue, the agent for cornerback Adam "Pacman" Jones, said negotiations reached an impasse for Tennessee's top draft pick. The news caught the Titans' general manager by surprise.

"I don't think I've ever seen this," Floyd Reese said before the Titans' game last night. "So this one's kind of new. I've only been doing this for 30 years, and this is the first time the press got an e-mail and the GM didn't."

* COLTS: Indianapolis placed defensive end Nathaniel Adibi (Virginia Tech) on injured reserve with a shoulder injury and re-signed defensive tackle Blake Lobel.

First-round draft picks Matt Ulrich (heat exhaustion) and Marlin Jackson (hip flexor injury) both returned to practice.

* BILLS: Wide receiver Roscoe Parrish had surgery on his injured right wrist, but the rookie is expected to play this season. The second-round pick from Miami fell on his right wrist while diving for a pass during training camp on Wednesday.