Apparently Bernie Kosar thinks Dwight Clark’s ALS diagnosis is worthy of a joke.

The former Browns quarterback tried being sly when he told an insensitive joke on ESPN Radio in Cleveland, saying he suspected Clark, who announced earlier this week he has ALS (also known as Lou Gehrig’s disease), had early signs of the disease when he was the general manager of the Browns from 1999 to 2002.

“We had a bad weekend with Gale Sayers being diagnosed [with dementia], Dwight Clark with ALS,” said Kosar, who battles post-concussion syndrome. “I can make a joke about his struggles in picking players when he was here. It almost makes me wonder if maybe it started earlier.”

Clark, GM of the Browns during their restarted expansion years, was responsible for teams that posted a 21-43 record in one slice of the franchise’s perpetual hell. His four years in Cleveland will be remembered for selecting quarterback Tim Couch first overall in 1999, which is considered one of the worst draft picks in NFL history.

Kosar later addressed his “joke” on Twitter, saying he meant no disrespect to the former 49ers legend.

“I spoke strongly about the need to prevention & care before U Get to This Sad Point!,” Kosar wrote.

Kosar has had a series of embarrassments since retiring in 1993. He declared bankruptcy, was arrested for drunken driving and lost a broadcasting gig for making bizarre, slurred comments on the air. Browns castaway Johnny Manziel once declined an offer to be mentored by the three-time Pro Bowler.

Clark, 60, is known for one of the most iconic plays in NFL history, “The Catch,” his leaping touchdown grab that lifted the 49ers past the Cowboys in the dying moments of the 1982 NFC Championship Game.

Clark said he is not sure his diagnosis is related to playing football. He vowed to “live every day to the fullest” while he battles ALS.