You may know that longtime Jeopardy! host Alex Trebek has been battling stage IV pancreatic cancer cancer. Trebek has been hosting Jeopardy! for 35 year that's totaled over 8,000 episodes.

During the Final Jeopardy! question of the latest episode of "Jeopardy! Tournament of Champions Semi-Finals", contestant Dhruv Gaur had $2,000 to wager. He bet nearly all of it ($1,995).

He didn't gIve the right answer though. Instead, he elected to answer wrong and wrote a message for Alex that had the Jeopardy! host emotional.

"What is, we love you Alex."

You can tell that Trebek takes a few seconds to realize what happened and is pretty emotional as a result. He got a warm applause from the crowd and all over social media.

Gaur tweeted out after the show:

You can watch the video below.