The quarterback wrote in an Instagram story that the league's decision to relax some uniform rules is "going to make for a lot of bad football."
It's unclear whether the future Hall of Famer was being tongue-in-cheek or actually believes players could have trouble discerning one position from another because the numbers don't align with the traditional structure.
On Wednesday, NFL owners approved a proposal to widen the uniform numbers available to multiple positions. For example, running backs, wide receivers and tight ends can wear anything from Nos. 1-49 and Nos. 80-89. Defensive backs can go with Nos. 1-49.
The upcoming season will tell if the proposal will lead to total anarchy across the NFL.