Jordan Matthews is off to a rough start in Buffalo.

According to the Bills, Matthews suffered a chip fracture in his sternum during his first practice on Sunday and is listed as week to week. That obviously means Matthews won't play on Thursday night against the Eagles at the Linc.

Matthews was able to finish practice but was then not made available to reporters in Buffalo.

It's unclear if Matthews will even travel with the Bills to Philadelphia this week for the game.

Meanwhile, Ronald Darby, the Eagles' return in the trade, practiced for the first time in an Eagles uniform at the NovaCare Complex on Sunday (see story). He looked pretty good too.