This article was originally published on www.si.com as Aaron Rodgers, Joe Flacco Reflect on Facing Off as NFL's Oldest Quarterbacks.

Thursday night's matchup between the Steelers and Bengals featuring Aaron Rodgers and Joe Flacco will mark just the second time in NFL history that opposing quarterbacks age 40 or older will start a regular or postseason game against each other.

Making his first start after the Bengals got him in a trade with the Cleveland Browns, Flacco quickly established connections with star receivers Ja'Marr Chase and Tee Higgins. Chase had 10 receptions for 94 yards and a TD, while Higgins added five catches for 62 yards.

CINCINNATI — Bengals wide receivers Ja'Marr Chase and Tee Higgins left quite an impression on Joe Flacco in his debut with the team on Sunday. The Bengals lost to the Packers 27-18, but Cincinnati's offense came alive in the second half, scoring on three-straight possessions.

The emergence of quarterbacks playing at high levels into their late 30s and early 40s represents a significant shift in NFL norms. Tom Brady’s unprecedented success until age 45 may have been the extreme example, but Rodgers and Flacco demonstrate that this isn’t merely a Brady anomaly but potentially a new paradigm for the position.