Robert Griffin III to have knee surgery Wednesday

Robert Griffin III is having surgery today on a torn ligament in his right knee -- and to see if there's a second ligament that also needs to be repaired.

Griffin's former coach at Baylor, Art Briles, confirmed to USA Today and The Associated Press last night that the Redskins rookie quarterback has a torn lateral collateral ligament. He said the surgery also will determine whether Griffin has damaged the ACL in that knee.

A person close to Griffin, speaking on condition of anonymity because the Redskins have not made an announcement, also confirmed the details surrounding Griffin's injury to the AP.

A torn LCL requires a rehabilitation period of several months, possibly extending into training camp and the start of next season. A torn ACL is a more severe injury, typically requiring nine to 12 months of recovery, although the Vikings' Adrian Peterson made a remarkable return this season about eight months after tearing an ACL -- and nearly broke the NFL's single-season rushing record.

Griffin tore his ACL in the same knee while playing for Baylor in 2009. He won the Heisman Trophy two years later.

Cowboys fire Rob Ryan

Dallas defensive coordinator Rob Ryan was fired after his injury-depleted unit struggled in a pair of season-ending losses that kept the Cowboys out of the playoffs for a third straight year.

The twin of Jets coach Rex Ryan spent two seasons with the Cowboys after he was fired two years into the same job in Cleveland.

"I enjoyed my time here," he told The Dallas Morning News. "I have no hard feelings. But it doesn't matter if I coach here or not. I will find another spot."

City of Brotherly Lovie?

The Eagles will interview Lovie Smith for their coaching vacancy today. He was fired last week after going 81-63 in nine seasons in Chicago. The Eagles also plan to interview Colts offensive coordinator Bruce Arians and Seahawks defensive coordinator Gus Bradley this week.

Cardinals name Keim GM

The Cardinals promoted Steve Keim to general manager from vice president for player personnel.