The Cleveland Browns had one of the best interior offensive lines in the NFL last season. The combination of Kevin Zeitler, J.C. Tretter, and Joel Bitonio helped keep quarterback Baker Mayfield from facing much pressure.
Both Zeitler and Bitonio have contracts that will keep them in Cleveland until 2022, and Tretter is expected to receive a contract extension during the off-season or at some point in 2019.
But should any problems arise with any of three players, the Browns have an insurance plan in second-year player Austin Corbett.