Eagles offensive lineman Lane Johnson, facing a 10-game suspension following a positive test for performance-enhancing drugs, blamed the on Saturday for not watching out for its members. But the union fired back, characterizing Johnson’s comments as “factually incorrect.”

This is Johnson’s second violation of the league’s drug policy. He was suspended for the first four games of the 2014 season after his first transgression.

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He accepted blame for the first offense. This time, not so much.

“The first time, I knew I was at fault,” Johnson said, per CSNPhilly.com. “And there’s no worse feeling than having to go through this again. This is something I desperately wanted to avoid. This is something I never want to be a part of again. I learned my lesson and I feel like the players have no rights. I feel like the supplement industry is not regulated, so you do not know what’s in it.”

Johnson believes his second positive test resulted from taking an amino acid he bought online. According to Johnson, an app given to players by the NFLPA indicates which supplements are approved.

“The NFLPA does not stand up for players,” Johnson said. “They don’t check the supplements. They give us an app, and then when you call them and ask them if you test positive for something they approve, it doesn’t matter.”

That’s just not so, according to the union, which issued a statement in response to Lane’s comments that reads:

1. NFLPA does not approve supplements. 2. While the (Aegis)App may have listed it with a green check, players are reminded within the app, at team meetings and as part of the policy that a) supplements may contain substances not on the label and b) still strict liability for putting it in your body if it contains something not on the label.

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Johnson also said that, even if he had been proactive enough to bring the supplement to the Eagles, it wouldn’t have made a difference. Rather than the team testing the supplement, the trainer would have simply read the list of ingredients, because a test would have cost the team “thousands of dollars.”

The Eagles are preparing for the likelihood of being without Johnson for the first 10 games of the upcoming season, giving Allen Barbre first team reps at right tackle, moving rookie Isaac Seumalo to left guard and relegating Johnson to the second team.

“Yeah, and that’s smart of them,” Johnson said. “I’m just taking it in stride and trying to go from there.”