Colorado's Alec Burks and Washington State's Klay Thompson are projected lottery picks in the NBA Draft.
They play the same position and will likely be taken in the 7-14 range of the first round.
And Burks and Thompson both worked out for the Jazz on Monday, though neither apparently dominated.
Asked who won their head-to-head battle, Burks said, "He's going to say himself, and I'm going to say myself. So that question, I don't know how to answer."
Burks is a slashing-type guard who has spent his workouts trying to prove he can consistently make jumpers.
Thompson is a shooter trying to show teams he is athletic enough to put the ball on the floor and defend.
Jazz coach Tyrone Corbin was impressed with both players.
"They are very talented kids that can handle the ball for their position, make plays for other people or can create shots for themselves," Corbin said. " … They can get the ball in a tight space and make something happen."
For Thompson, another workout meant more questions about his arrest for marijuana possession in March.
Two hours after Thompson scored 22 points in a win over USC, a Pullman, Wash., police officer stopped him for having one headlight.
When the officer smelled marijuana, a search warrant was obtained and 1.95 grams was found in the car.
Thompson said the situation has impacted his workouts because NBA teams "are concerned."
He has tried to address the concerns honestly because "if I'm not honest, NBA teams are smart and they'll find out whatever they need to find out. So I thought I did a good job of that, and I'm just leaving that behind me."
Said Corbin: "We always look at a guy's character, and I think he's done a great job of stepping up and taking responsibility."
The Jazz own the Nos. 3 and 12 picks in Thursday's draft. They are finished working out players, general manager Kevin O'Connor said.