Detroit Lions quarterback Matt Stafford suffered a knee injury in Sunday's 48-24 loss to the Chicago Bears and is listed as day-to-day, the NFL team said. Head Coach Jim Schwartz would not comment on an ESPN report the 21-year-old rookie signal-caller suffered a dislocated knee, The Detroit Free Press said Monday. Stafford, who threw for 296 yards against the Bears, was injured when he was sacked late in the game and was replaced by veteran backup quarterback Daunte Culpepper in the fourth quarter. Matt is day-to-day with a knee and we'll see where he is on Wednesday, Schwartz told The Detroit News. Schwartz said Stafford had undergone medical tests and was listed as day-to-day when practice resumes Wednesday.

Free-agent rookie Tristan Davis scored on a 79-yard run in the fourth quarter Thursday to wrap up the Detroit Lions' 17-6 exhibition victory over Buffalo. Detroit quarterback Matthew Stafford, locked in a battle with Daunte Culpepper for the starting position, completed 5-of-9 passes for 81 yards with an interception.

The Detroit Lions patched up their quarterback corps Tuesday, signing Brooks Bollinger after Drew Stanton had an arthroscopic procedure on a knee. Stanton was hurt Saturday in a pre-season game against Indianapolis. The Lions also said Daunte Culpepper received eight stitches to close a cut on a toe that he injured Saturday in an accident at his home.

Drew Stanton threw for a touchdown and a conversion in the fourth quarter Saturday to give Detroit an 18-17 pre-season win over Indianapolis. Daunte Culpepper started for Detroit and was 7-for-12 for 67 yards and a TD and rookie Matthew Stafford was 13-of-19 for 160 yards and an interception.

Jamal Lewis and James Davis each ran for a touchdown, and Derek Anderson threw for 130 yards Saturday in Cleveland's 27-10 exhibition win over Detroit. Davis, a rookie out of Clemson, racked up 116 yards on 12 carries for Cleveland, including an 81-yard touchdown run in the third quarter.