Arrowheadlines: Chiefs News 9/5

Good morning! Bad news starts us out. If someone has the Green Bay game saved, you can go back and see Cassel and the trainers looking at Cassel's ribs on his left side after he's sacked. Here are the stories about that and the rest of the Kansas City Chiefs news.

The Chiefs said Matt Cassel had nothing more than the wind knocked out of him when he left their final preseason game Thursday against Green Bay after being sacked midway through the second quarter.

It turns out Cassel has more than that. He has a rib injury that could prevent him from playing in Sunday’s regular-season opener against Buffalo at Arrowhead Stadium.

Cassel May Miss Chiefs' Opener With Rib Injury from KC Star

Tyler Palko finished the game for Cassel and has served as the Chiefs second quarterback throughout the preseason. He threw his first NFL pass last season when Cassel missed a game in San Diego because of emergency appendectomy surgery. Brodie Croyle started that contest.

The Chiefs are set to hit the practice field Monday afternoon. Injury reports are required to be submitted to the NFL following practices on Wednesday, Thursday and Friday.

All questions will be answered in time. It’s officially game week.

Game Week Begins With Several Questions from The Mothership

Cassel’s availability will likely be determined on how the rib heals and if he would feel comfortable playing. This could be a two to three week injury because the injury affects the ability to breathe comfortably. Cassel will likely be fitted with a protective device and I’d suspect he’ll, at least, try to play if the injury isn’t too severe. Still, the Chiefs will want him to practice at least some this week if he is going to play.

Cassel Has A Week to Adjust to Rib Injury from ESPN

Third on his position on the depth chart, Greenwood understands he’s on the Chiefs to be a special-teams specialist. A first-round pick by the Argos in 2010 before signing with the Chiefs as an undrafted free agent, Greenwood recovered a fumbled punt in Kansas City’s pre-season finale against the Green Bay Packers last week.

"I’ve had just two years of 11-man football," Greenwood said.

"I know what my role is and I’m embracing it."

NFL Cutdown Day Kind to Canadians from The Toronto Sun

Thanks to Randy Covitz, the veteran NFL writer for the Kansas City Star, for sharing his perspective on former Chiefs guard Brian Waters today. Here are some of the things that Kovitz passed along:

KC Reporter Shares Waters Insight from ESPN

"I kind of figure I'm in the prime of my career right now, mentally and physically," said Johnson, who is coming off easily the best year of his career. "Everything is clicking on all cylinders."

It took awhile – six years, 90 games and countless headaches, to be exact.

This 'Older Guy' is Also a Big-Impact Guy from The Sacramento Bee

It was a downer when they lost in the first round of the playoffs, falling at home to wild card Baltimore 30-7, but coach Todd Haley felt confident the team would come into this season and build on last year’s success. So far it hasn’t happened.

The Chiefs were a feeble 0-4 in the pre-season. They were outscored 90 to 42 and the No. 1 offense could not produce a touchdown. Haley used the old "we weren’t game-planning" excuse for awhile but by the end even he admitted there were problems.

NFL Notebook: The Lions Might Be... Good from CSNPhilly