Updated

The Buffalo Bills and offensive tackle Cordy Glenn have agreed to a five-year, $65 million contract extension, FS1 NFL Insider Mike Garafolo confirmed Tuesday.

Glenn will get $36 million guaranteed, averaging out just under the franchise tag one-year salary of $13.7 million, according to Garafolo.

The 26-year-old Glenn, a 2012 second-round draft pick out of Georgia, has started 57 straight games for Buffalo and is an important component of a Bills offensive line that was strong last season. The 6-foot-6, 345-pound Atlanta native was given the franchise tag earlier this offseason.