so either the team is playing games (in which case cobb is in trouble because he spilled the beans. or we have another case of misdiagnosis by our wonderful medical team

http://profootballtalk.nbcsports.com...ry/rumor-mill/

here's the last paragraph

Cobb also said that his injury wasn’t the fractured fibula that was widely reported when he got hurt last month, although the specific nature of the injury is ultimately of more significance to Cobb than to those interested in when he’ll be back on the field. They and the team will have to wait a bit longer to find out if that will be this season.