HOUSTON — Rebounding has always come naturally to David Mirkovic. Before he committed to play college basketball at Illinois, the 6-foot-9 forward from Montenegro played two seasons of professional basketball in the Adriatic Basketball Association League, where he averaged 6.4 rebounds per game during the 2024-25 season.
When the ball bounced off the rim or backboard, Mirkovic corralled it, simple as that.
That changed when he got to Illinois last summer.
“It’s much different,” Mirkovic said. “(In Montenegro), I didn’t have coaches that tell me and remind me every day all day to crash the boards or get some of the defensive rebounds. But since I’m playing basketball, every time I was the best rebounder on my team. I would say just naturally, I had that feel for rebounds. So when that combines with the coach that’s put that much emphasis on rebounding, it’s just getting better.”
Mirkovic is now the top rebounder on an Illinois team that is riding a rebounding wave into Saturday’s NCAA Tournament Elite Eight game against Iowa.
This season, the Illini are ranked 10th in rebounds per game (41.1) and seventh in rebounding margin (10.1). It’s not a new strength; Illinois has been a top-10 rebounding team in the country in each of the last three seasons.
“I think the secret sauce is just, it’s something you emphasize every single day,” said Illinois assistant coach Tyler Underwood.
Underwood’s father, Illinois head coach Brad Underwood, was Kansas State’s director of operations during the 2006-07 season under head coach Bob Huggins, who is famous for his aggressive rebounding schemes. That left an imprint on Underwood, and in nine seasons at Illinois he’s made rebounding a pillar of his program.
The Illini track individual players’ “go rates” – what percentage of the time they crash the offensive glass – in practices and games. At halftime, coaches check “go rates” and remind players who are falling short to fulfill their offensive rebounding obligations. The message is clear: If you don’t go, your playing time stops.
The Illini are receiving key contributions on the boards from a pair of freshmen, Mirkovic and guard Keaton Wagler.
Through three NCAA Tournament games, Mirkovic is averaging a team-high 10.7 rebounds to go with 13.7 points. Wagler, the team’s top scorer averaging 17.7 points, is right behind him averaging 8.0 rebounds.
In the Illini’s Sweet 16 win over Houston, Mirkovic broke the Illinois freshman total rebounding record set by Kofi Cockburn six seasons ago, while Wagler pulled down a career-best 12 rebounds. They became the first pair of freshman teammates to each have a double-double in the same NCAA Tournament game since freshmen became fully eligible in 1972-73.
“His frame doesn’t scream 12 rebounds, but his toughness does,” Houston coach Kelvin Sampson said of Wagler.
Prior to Thursday’s game, Brad Underwood told Illini players that they would need a massive effort on the glass to win, especially from the guards. Wagler answered the call.
“He’s a great listener,” Brad Underwood said. “We knew that (Chris) Cenac and (Joseph) Tugler, they back tap a lot of balls. They’re elite at it. So our bigs were going to have to hit bodies, but our guards were going to have to come clean it up. So we needed a big, big rebounding game from our guards. I thought Keaton just takes everything to heart. He’s had some big rebounding games this year, but to do this in this moment – you guys got to understand what a joy it is to coach him, and he doesn’t worry about needing to score points.”
While Illinois’ bigs engage in physical battles under the basket to grab rebounds off the rim and box out their defenders, Wagler and the other guards stay alert and track down longer rebounds.
Tyler Underwood said that the Illini chart their misses and find that most occur on shots from the left corner of the court. When they miss from the left, the ball tends to carom to the right side of the basket, so Illinois tells players to flood “opposite and inside” to be in prime rebounding position.
Illinois typically has four players crash the boards after shots on offensive possessions, but last season the team slightly altered its rebounding philosophy. Instead of either the point guard or the shooting guard always being the player responsible for getting back on defense after a shot, the Illini decided that on 3-point shots, the shooter is the one who gets back – regardless of what position he plays.
That nuance has helped Illinois take advantage of their “twin towers,” brothers Tomislav and Zvonimir Ivisic, two 7-footers who each attempt more than half of their shots behind the 3-point line.
“With our pick-and-pop bigs, they end up shooting a lot of 3s, so that draws opponents’ bigs away from the rim, which puts them in uncomfortable sports, which allows guards to rebound,” Tyler Underwood said. “And our bigs end up being back in transition a lot, which is good because they’re our 7-footers.”
The strategy only works if players like Mirkovic and Wagler pick up the slack on the boards.
“I think rebounding, there’s an element of feel to it, an element of timing, an element of tracking the ball while it’s in the air,” Tyler Underwood said. “Both of those guys excel in that area because they have such a good feel for the game. And then they’re very disciplined and they put their teammates first. They’re willing to make winning plays.”
Both freshmen are do-it-all players who have developed a close relationship with each other on and off the court.
On the surface, the idea of a 6-foot-9 former professional player from Montenegro forming a bond with a skinny guard from Shawnee, Kansas, calls to mind videos of unlikely animal friendships. But the pair’s chemistry has blossomed through a mutual appreciation for hard work and competition, be it playing the “NBA 2K” video game or working out on the court.
“We have some similarities in our personality, like we are both Gen Z, I would say,” Mirkovic said. “The second thing, we had a lot of similarities, basketball-wise. Like we are pretty similar players despite different positions. … I would say our understanding and IQ of basketball and our unselfishness and skill level, that makes us unstoppable.”
Wagler said, “My first impression of him is that he’s a goofy guy who likes to mess around, but then in practices, he’s super competitive. He hates losing drills, no matter what it is. I knew we were gonna get along after that because I’m competitive. I don’t like to lose.”
They’ve both learned to embrace the Illini’s rebounding ethos, too. Wagler said he and Mirkovic have gained confidence from watching each other succeed.
“I think we both learned that you don’t have to be the most athletic or fastest person on the court,” Wagler said. “You can play at your own pace and still be as good as anyone. We both do the right things and we both want to win. Doesn’t matter if we score however many points, you know – if we got to go in and pass, get assists, get rebounds, we’ll do that.”