
Missing his first career snap was bad enough for Joe Thomas, but missing his first career game would be even worse. That apparently could be a possibility for the Cleveland Browns left tackle.
NFL Media’s Ian Rapoport says Thomas is feared to have a torn triceps. The lineman said on his Twitter account that he will undergo an MRI on Monday, which will give the team a better idea about his status.
Tough day today. I appreciate the outpouring of support! MRI Monday to figure out where we go from here. Go Browns!!
— Joe Thomas (@joethomas73) October 22, 2017

Rapoport says that if the MRI confirms he has torn his triceps, he could be out for the season.
#Browns LT Joe Thomas is feared to have a triceps tear, sources say. If the MRI confirms it Monday, it likely means season-ending surgery.
— Ian Rapoport (@RapSheet) October 22, 2017
Prior to Sunday, Thomas had not missed a snap in his entire career. The Browns may have to prepare for the possibility of playing without Thomas for the first time since 2007.