Cincinnati beat Buffalo in the trenches. They’ll look to do the same on Sunday in Kansas City It was universally agreed upon that the Bengals’ offensive line was going to have to overcome a mismatch with the Bills’ defensive line going into their Divisional Round matchup with Buffalo. Down three starting linemen, the question seemed to be just how bad would they play and whether they would be able to run their standard offense or not? Instead of simply surviving, the Bengals offensive line was thriving in this game. Joe Mixon averaged 5.3 yards-per-carry, which is the fifth-highest average of…