A PED is different from a recreational drug because of motivation - whereas recreational,drugs are taken to "feel good" or support a habit, PED's are taken to gain an unfair advantage over an opponent competitively or a teammate to win a roster spot.
In this respect, Peterson cheated. No sympathy.
When the Cardinals win, I want to feel proud that they played better than the other team/ & not because they took better drugs...
The UFC has more stringent drug testing than the NFL.