The Buffalo Bills have until the end of the day on Tuesday to decide whether or not they'll use the franchise tag on Cordy Glenn. According to one report, that isn't the only situation along the offensive line that the Bills are struggling with.

Mike Florio of ProFootballTalk.com reported Tuesday morning that the Bills are frustrated with starting left guard, and soon-to-be unrestricted free agent Richie Incognito over talks of a new contract. According to the report, Incognito has declined the Bills' initial contract offers and the team had hoped he would sign for less than what he would get on the open market.

Incognito signed with the Bills last year in the hopes of reviving his career -- and he was successful in doing so. Incognito started all 16 games at left guard for Buffalo, and will now become an unrestricted free agent on March 9 at 4:00 pm. The Bills had hoped by giving Incognito a chance, according to the report, that they would get a break from the left guard.

Head coach Rex Ryan alluded to some frustration when he spoke to reporters at the NFL Combine last Wednesday. "I'm trying, guys," Ryan said in response to a question about attempting to recruit Incognito.

The Bills are strapped against the salary cap this offseason, and likely aren't willing to overpay Incognito -- much like what he would get as an unrestricted free agent. Turning 33 years old this summer, this could be the last chance for Incognito to cash in on the open market with a long-term deal.

Twitter: @JoeBuscaglia