Sep 29, 2013; Orchard Park, NY, USA; Baltimore Ravens guard Kelechi Osemele (72) and guard Marshal Yanda (73) before the game against the Buffalo Bills at Ralph Wilson Stadium. Mandatory Credit: Kevin Hoffman-USA TODAY Sports

Week 1 was the Ravens’ receivers versus their own hands. Week 2 was the Ravens’ offensive line versus the Steelers front-seven. Week 3 was Justin Tucker versus the hopes of an entire Midwestern city. What will be the defining matchup in Week 4, when the Baltimore Ravens take on the Carolina Panthers?

Odds are, it will be at least one of these three matchups to watch on Sunday.