Earlier this offseason, rising star defensive end David Irving was hit with a four-game suspension for violating the league’s performance-enhancing drug (PED) policy. He’s supposed to be eligible to return for the game against Green Bay, the opponent he broke onto the national scene against by registering three forced fumbles in just 19 snaps. Based on a tweet from him at the conclusion of Thursday’s practice, the NFL appears to be threatening him with an extension of the penalty.

I don't see how my suspension will be increased for not talking to a counselor!?! — David Ja Rodd Irving (@Caliboy_95) August 24, 2017

Irving may be shocked, but the league does spell out the fact a player must adhere to counseling if recommended.

[Read: Sit Down, Be Humble: Cowboys’ Irving suspended 4 games]

Here’s the league’s PED policy, courtesty of the NFLPA website. It clearly states in addition to the four game, counseling could be necessary. What doesn’t appear clear, however, is what is the recourse from the league if the player chooses not to attend counseling.

Postive Test Result for Stimulant or Anabolic Agent — four regular and/or postseason games.

In addition, the Player will be subject to evaluation and counseling if, in the opinion of the Independent Administrator, such assistance is warranted.

Section 4.3 of the policy also references the Adminstrator’s right to call for counseling but again doesn’t specifically lay out what right the league has to further punish a player for not complying.

It has been rumored Irving’s reason for failing the PED test was he took a supplement which wasn’t cleared with team doctors as part of a marketing deal, possibly suggested to him by an agent who no longer represents the player.