Updated at 3:40 p.m., June 7, 2018: with details throughout.

Texas Sen. Ted Cruz and late-night host Jimmy Kimmel plan to go head-to-head in a game of hoops, tentatively scheduled for Father's Day weekend, with the loser donating $5,000 to the non-political charity of the winner's choice.

The catch? Both men must wear "VERY short shorts," at Kimmel's request.

It's a requirement Cruz isn't too keen about. Speaking Thursday at the Faith and Freedom Coalition's "Road to Majority" conference in Washington, D.C., Cruz decided to end his political remarks on a light note.

"I give you my earnest commitment: Under no circumstances will I be wearing short shorts and a crop top," Cruz told the crowd. "Nobody in America wants to see that."

Cruz, speaking candidly to the crowd, said his staff is a little worried about if Kimmel will dunk on him.

"That ain't gonna happen," Cruz added. "If need be, I'll pull his shorts to the ground, but he is not getting to the rim."

A few ground rules in advance of my one-on-one basketball game with Senator @TedCruz... pic.twitter.com/eStOlVqaIP — Jimmy Kimmel (@jimmykimmel) June 7, 2018

Kimmel confirmed the basketball game on his show, Jimmy Kimmel Live, on Monday night, with more details to come. Offices for both men have yet to comment on additional details.

"So this is happening — Ted man walking," Kimmel said on his show Monday. "We're still working out the details, but we're planning to do it Father's Day weekend."

Cruz-Kimmel basketball game tentatively set for Father’s Day weekend (June 16-17) https://t.co/2bIZLjvOFU — Patrick Svitek (@PatrickSvitek) June 5, 2018

Kimmel was realistic about his chances against Cruz, who played on his high school's varsity basketball team. Kimmel, on the other hand, played clarinet in his high school's marching band.

"And yet, I think about it, I cannot imagine any scenario in which I lose this game to that greasy blobfish — there's just no way," he said, referring to his comparison of Cruz to what's been rated one of the world's ugliest animals.

The Republican senator, who's campaigning for re-election in November, opened a Twitter exchange with Kimmel last week after the host poked fun at Cruz for sporting a "super-cool, T-shirt-over-a-polo look," at a recent Houston Rockets game.

"Can you be embarrassed by a picture of someone else's dad? Because I am," Kimmel said on his show, Jimmy Kimmel Live.

Kimmel threw some more jabs at the senator's appearance, implying fans mistook Cruz for the undead vampire patriarch from the '60s sitcom The Munsters.

"When Ted [Cruz] arrived at the Toyota Center, some of the fans mistakenly thought it was Grandpa Munster Bobblehead Night," Kimmel added. "I mean, look at him. He looks, and I'm not joking here, he looks like a blobfish."

Cruz then took to Twitter, responding that the two men should "settle this man-to-man" in a one-on-one game of hoops, or "ring ball," referring to a 2016 comment he made during a stop in Indiana, where he called a basketball hoop a "basketball ring." At the time, Cruz was making a stop on his campaign for the Republican presidential nomination.

.@jimmykimmel All right, Big Guy...you talk a good game. You besmirched my support for the @HoustonRockets 🤨 So let’s settle this man-to-man: one-on-one, hoops (or “ring-ball,” if you prefer). The loser gives $5k to the (non-political) charity of the winner’s choice. https://t.co/BWvAP5VOtM — Ted Cruz (@tedcruz) May 31, 2018

There were little details on where the showdown will take place, or to which non-political charities Cruz and Kimmel plan to donate their winnings.

I like this idea. I’ll accept on one condition - we both wear VERY short shorts. https://t.co/rKxgHuPCjW — Jimmy Kimmel (@jimmykimmel) May 31, 2018

The exchange quickly went into some wacky territory, with Kimmel putting up the "short shorts" condition and asking what other pieces of clothing would be most appropriate.

.@JimmyKimmelLive Knock yourself out. Heck, you can wear a kilt if you like. pic.twitter.com/KbWvbpEVuL — Ted Cruz (@tedcruz) May 31, 2018

People on Twitter didn't shy away from joining in on the fun, as some replied with GIFs, jokes and retorts of their own.

Can Mitt be the Ref? pic.twitter.com/j2PqmpWJUp — Tgage (@tgagemurphy) May 31, 2018