A Sunday MRI confirmed Broncos C Dan Koppen has a torn left ACL and will miss the 2013 season.
FOX Sports' Jay Glazer reports the Broncos fear C Dan Koppen tore his left ACL during Sunday's training camp practice.
Broncos re-signed C Dan Koppen to a one-year contract.
The Denver Post expects the Broncos to "take a look" at free agent C Dan Koppen with C J.D. Walton (ankle surgeries) likely out for the season.
Broncos agreed to terms with C Dan Koppen, formerly of the Patriots.
Patriots released C Dan Koppen.
Patriots C Dan Koppen has reiterated he's 100 percent recovered from the broken ankle that limited him to one game last season.
Updating a previous item, Patriots C Dan Koppen's two-year deal has a base value of just $3.05 million.
Recently re-signed Patriots C Dan Koppen says he's completely healed from the broken leg that limited him to one game in 2011.
Patriots agreed to terms with C Dan Koppen on a two-year, $6 million contract.
The Patriots discussed re-signing C Dan Koppen before the beginning of free agency.
The Titans will host C Dan Koppen for a free agent visit later this week.
Free agent C Dan Koppen says he feels "great" after missing all but one game in 2011 with a broken ankle, and plans to continue playing in 2012.
ESPN Boston believes the Patriots could allow free agent C Dan Koppen to walk.