'Jeopardy' contestant Dhruv Gaur writes heartfelt message to Alex Trebek

'Jeopardy' host Alex Trebek shared his pancreatic cancer diagnosis with fans earlier this year, and has been bravely battling the disease while still hosting the show ever since. Naturally, Trebek's many loyal fans have shared a lot of messages of support, but a recent gesture made on-air had him visibly choked up:

During the "Final Jeopardy" round, contestant Dhruv Gaur used a question about an 1890 exposé of poverty in New York to share a message of love and support. It's evident from the clip that Trebek was expecting to read a standard answer, and was clearly surprised to see a message reading "We love you, Alex!" instead.

Dhruv later took to Twitter to provide some additional context - during the taping of that episode, Trebek revealed to the contestants that he'd be re-entering treatment for his cancer soon. 

Sorry for west coast spoilers, but I’m really glad I got the opportunity to say to Alex what everybody at the tournament was thinking ... 1/n

Dhruv Gaur @dhruvg_ ...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_ When Final Jeopardy came up, I could’ve tried to puzzle it together, but really, just kept thinking about Alex, and thought he should know. 3/n

Dhruv Gaur @dhruvg_ I’m just very grateful I got the opportunity to say what I know everyone was thinking. Sending all the love. #weloveyoualex

Monday's episode was part of a regular "Tournament of Champions," bringing back past winners to compete. All the contestants wore purple ribbons to support pancreatic cancer awareness, and will also be organizing a fundraiser in support of pancreatic cancer research.

Messages of support from choked-up fans also poured in on Twitter:

Jeopardy! ? @Jeopardy  Couldn't have said it better ourselves, Dhruv! #WeLoveYouAlex

JR @totototodayJR Alex Trebek almost cried tonight because one of the competitors didn’t know the answer and just wrote “We love you Alex” and WE CANNOT GO ON WITHOUT TREBEK  LIFE IS NOT FAIR

GENO @GenoPowell Emma might've won the game & moved on to be a finalist but Dhruv Gaur stole the show with his answer in Final #Jeopardy. Thanks Dhruv for doing that bcuz that's how everyone feels about Mr Alex Trebek. We all love him & wish him well. Alex's reaction was priceless

Scott Williams @jswilliams1962 Answer: What is #WeLoveYouAlex   Question: What would all of America like to say to Alex Trebek?

Shady @WotShady Alex Trebek is a legend, fuck cancer. #WeLoveYouAlex