Raiders left tackle Donald Penn had started 170 consecutive regular season games dating back to 2007. That streak will come to a end on Christmas night. A foot injury suffered early in Sunday's 20-17 loss to the Dallas Cowboys will end his season two games early, per an NFL Network report. He will have surgery Thursday to repair the issue. That's a major loss up front. Penn has been Derek Carr's blindside protector since 2014, as reliable as anyone on this roster. Losing him down the stretch will hurt. "Absolutely, (he's) our leader," reserve tackle Vadal Alexander said. "Him, Rodney (Hudson), are veterans of the group. Our leaders. Our OGs as we call them."