As was officially announced on the Chiefs’ web site earlier on Thursday, quarterback Matt Cassel has been ruled out of Sunday’s  game against the Buccaneers and Brady Quinn will get his first start since 2009.  In the afternoon, both the Chiefs and Buccaneers released their injury reports for the day, and Cassel is the only player on either team who has already been tagged with the “out” designation.

The Chiefs did have five other players who were held out of their Thursday practice, while the Buccaneers had just one player sidelined by injury.  Wide receiver Jon Baldwin (hamstring) and defensive end Glenn Dorsey (calf) are the key names among the idle Chiefs, while defensive tackle Roy Miller was the lone Buc to get the day off.

Here are the official injury reports for both teams on Thursday:

Buccaneers

Chiefs

Obviously, that’s a little more troublesome report for the Chiefs than the Buccaneers, and it would seem to put Kansas City’s offensive backfield in question.  Miller did practice for Tampa Bay on Wednesday and was only added to the injury report Thursday.  Trueblood has been plagued by a stomach virus but has been able to practice through it the last two days.  Wright had been limited on Wednesday, so Thursday was a step forward for him.