Chandler Jones, a former Syracuse defensive end and current Las Vegas Raider, revealed on social media Monday that he was hospitalized “against (his) will” and injected with an “unknown substance.”

Jones wrote that “5-to-7” Las Vegas fire department officials knocked on his door last week and put him into an ambulance to the hospital. He was later transferred to a behavioral health facility.

He continued, saying “I haven’t done anything wrong. The police said people were concerned about me because of my posts online,” likely referring to a flurry of posts made about the Raiders, HC Josh McDaniels and owner Mark Davis during Labor Day weekend.

Here’s Jones’ post from Monday:

Jones insists he wrote to GM Dave Ziegler “6 to 7 times asking for help and I wondered if he had me put in here, but he never answered.”

The 11-year NFL veteran has not played this season. The Raiders regard his status as a private matter and have since declined to make a comment.