The Broncos have confirmed that Wiegmann has been cut and they also confirmed that backup running back LaMont Jordan was cut as well. The two releases will likely become official Wednesday.
Wiegmann signed a two-year contract extension last summer. Wiegmann, 36, made the Pro Bowl in 2008 after his first season in Denver. However, the smallish Wiegmann became obsolete in Denver when the team decided to change blocking schemes this offseason.
Second-year coach Josh McDaniels kept the zone-blocking scheme used by former Denver coach Mike Shanahan in his first season in Denver. However, McDaniels was critical of the unit late last season. McDaniels kept Shanahan holdover Rick Dennison last year. Dennison became the offensive coordinator in Houston last month.
"Denver is changing its offense and it is moving on," Wiegmann's agent Joe Linta said. "Casey will move on as well. He has, at least, a couple of more good years left in him and he looks forward to continuing his career elsewhere."
Jordan had 25 carries for 86 yards in Denver in 2009, his only season in Denver.
Bill Williamson covers the NFL for ESPN.com.