Jones approaches Romo about extension By SPORTS NETWORK

Dallas Cowboys quarterback Tony Romo stands next to head coach Jason Garrett before the start against the St. Louis Rams in their NFL football game in Arlington, Texas August 25, 2012. (REUTERS/Mike Stone)

Dallas Cowboys owner Jerry Jones is interested in signing quarterback Tony Romo to a contract extension, and has conducted preliminary talks toward that goal, according to an ESPN.com report.

Romo’s salary-cap charge doubles to $16 million next season, which is a likely factor in the Cowboys’ motivation to get a deal done. His contract expires after the 2013 season.

While it’s tough to imagine Romo in another uniform, a deal could take a while to complete, according to NFL.com and NFL Network’s Ian Rapoport.

“There’s nothing really going on,” the source told Rapoport.