It's not often that Jeopardy! makes you want to break down sobbing, but since host Alex Trebek revealed in March that he'd been diagnosed with stage 4 pancreatic cancer, viewers have been showing him some extra love.

In September, Trebek announced that he would need to undergo additional chemotherapy treatments, and as he remains hopeful and upbeat, both viewers and contestants are supporting him.

In the "Final Jeopardy!" round of Monday night's episode, an especially touching moment occurred when contestant Dhruv Gaur shared a heartfelt message with Trebek during the show.

"Dhruv, you're smiling. I like that. Let's take a look at your response," Trebek said. "Did you come up with the right one? No. What is, 'We love you Alex,'" he continued in a choked up voice. "That's very kind of you. Thank you."

Today's Final Jeopardy! includes a heartfelt moment with Alex and another win for Emma! #TournamentOfChampions pic.twitter.com/qWnKFUKL2U — Jeopardy! (@Jeopardy) November 12, 2019

Gaur's incorrect response cost him $1,995, leaving him with just $5, but he shared on Twitter that he's "really glad" he "got the opportunity to say to Alex what everybody at the tournament was thinking."

"For context, Alex had just shared with us that he was reentering treatment for pancreatic cancer. We were all hurting for him so badly," Gaur explained. "When Final Jeopardy came up, I could've tried to puzzle it together, but really, just kept thinking about Alex."

...for context, Alex had just shared with us that he was reentering treatment for pancreatic cancer. We were all hurting for him so badly. 2/n — Dhruv Gaur (@dhruvg_) November 12, 2019

I’m just very grateful I got the opportunity to say what I know everyone was thinking. Sending all the love. #weloveyoualex — Dhruv Gaur (@dhruvg_) November 12, 2019

The clip of Gaur's response nearly moving Trebek to tears spread rapidly online, and many shared their love for the host using the hashtag #WeLoveYouAlex.

Watching Alex Trebek get choked up during Final Jeopardy when a contestant burned his answer to share a special message, is more than I can handle tonight #WeLoveYouAlex. ❤️ — Amina Bobb Brattke (@AminaBrattke) November 12, 2019

alex trebek choking up while saying "you're left with five bucks" is a better epitaph than america deserves https://t.co/Uh7MTJy900 — rob harvilla (@harvilla) November 12, 2019

If you’re a GenXer, Alex Trebek is a childhood icon. He was part of the fabric of life for 80s kids. I’d watch w friends & family—shouting out answers. When my Nani visited from India, she’d watch, too. She didn’t speak English but she loved seeing people’s joy. #weloveyoualex https://t.co/4PB9w9Op6P — Samira Ahmed (@sam_aye_ahm) November 12, 2019

I saw it live, but damnit, it still made me tear up tonight on TV. #weloveyoualex — Eric Backes (@BackesEric) November 12, 2019

Competitors in Jeopardy!'s Tournament of Champions are also organizing a charitable play along on Nov. 14 and 15 and encouraging viewers to donate money to the Lustgarten Foundation for Pancreatic Cancer Research in Trebek's honor.

The #Jeopardy Tournament of Champions competitors are organizing a charitable play along to help fight pancreatic cancer. See below for details, play along, spread the word, and let’s do what we can to help win this fight. pic.twitter.com/tP9CG49paP — Steven Grade (@ask_Steven) November 5, 2019

Alex Trebek is a real one, and Jeopardy! fans aren't going to let him forget it.