JUNE 7, 12:00pm: Thompson is now awake and responsive, per his agent. Pelissero echoes the sentiment that Thompson has a positive prognosis, a welcomed update to this situation.
JUNE 7, 8:58am: An update from Thompson’s agent states (via Pelissero) that he remains unconscious but in stable condition with “good” vital signs. Further developments related to his condition and recovery timeline (about which, ESPN’s Jeremy Fowler notes, doctors are “optimistic”) will no doubt be closely monitored around the NFL.
JUNE 6: The Chiefs canceled their scheduled practice Thursday due to a medical emergency, as first reported by ESPN’s Adam Teicher. Details on the situation have since emerged. 
The incident took place during a special teams meeting with the affected player suffering a seizure and going into cardiac arrest, per Tom Pelissero of NFL Network. The identity of the player was initially unknown, but both Pelissero and Teicher have since noted it is defensive end BJ Thompson.
Thompson received immediate attention from the Chiefs’ medical staff and he was taken by ambulance to a local hospital. He is in stable condition, per multiple reports. In the wake of that encouraging update, Teicher adds Kansas City will practice tomorrow as the team’s OTAs wrap up.
Thompson was a fifth-rounder of the Chiefs during last year’s draft. He began his college career at Baylor, collecting four sacks in 2018. He then transferred to Stephen F. Austin and spent four years there. The 6-6, 243-pounder earned first-team All-WAC honors in 2021 and ’22 to close out his tenure at the college level.
The 27-year-old made just one appearance during his rookie campaign, the regular season finale. He made a pair of tackles while seeing a rotational defensive role along with time on special teams. Thompson once again has a number of players ahead of him on the depth chart (George Karlaftis, Mike Danna, Charles Omenihu, Felix Anudike-Uzomah), and today’s events will no doubt keep him sidelined for a period of time. Thompson’s recovery process will be worth watching ahead of training camp next month.
Another unexpected bit of chiefs news this offseason
Speed on your recovery and future prognosis
Terrible to hear this happened. I wish him and his family all the best during this difficult time.
Having had 8 heart attacks and a quadruple bypass I can honestly say that once they got him to the hospital his chances increased tremendously to survive 30 years ago not so much
Good on you for still being here. 8 is crazy.
I’m saving my heart attack for when the Bears find a QB who can lead them to a championship (no worries…Williams ain’t that guy).
He’s likely in elementary school now, Lemon. Health wise, you’re good
What… but hes the next tom brady… lol .. williams will be a back up on another team within 2 years. Everyone argues with me and case in point ..2021 draft
I suppose Korey Stringer and Chuck Hughes must have gotten the covid vaccine.
Yea stringer was ahead of his time on covid. A regular nostradomis
Zim zum is a clown. Go back to 4chan.
Damn, saw they canceled practice, knew it had to be something serious. Get well soon.
Damn… scary
Saw other headlines of Chiefs and arrest and thought oh boy, here we go again. Anyway, good luck to this young man, hope he pulls through at 100%.
I’m surprised this isn’t happening a lot more for the most obvious reason…
Although very sad and scary for him and his family, it’s totally normal
Why would it be more likely to be the vaccine than to be the lingering effects of actual covid? Or you know, that cardiac arrest is a thing that’s always happened to large athletes periodically.
Agreed and marvel that football teams that practice in summer heat—in full pads— don’t have more of these kinds of situations, from high schools on up. Guess I never understood the logic, whether it’s kids or well paid athletes
So very glad that he is doing better. Praise God!!!!
Awake and responsive in 1 day – great news. Took me 5 to come out of my coma from my heart attack.
Classy PFR, delete a thread because it doesn’t follow the narrative.