Former John Calipari Big Man Zvonimir Ivisic Bolts to Join Brother at Big Ten School

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Former Arkansas Razorbacks and Kentucky Wildcats big man Zvonimir Ivisic has committed to Illinois, according to a report from ESPN's Jonathan Givony. He entered the transfer portal Monday following Arkansas' Sweet 16 loss to Texas Tech.
Ivisic spent his first two collegiate seasons under coach John Calipari, who left Kentucky after 15 seasons for the Arkansas job. Ivisic followed his coach and joined the Razorbacks for his sophomore season, and now finds a new home in the Big Ten a year later.
NEWS: Arkansas transfer Zvonimir Ivisic has committed to Illinois, his agent Misko Raznatovic told ESPN.
— Jonathan Givony (@DraftExpress) April 5, 2025
Big Z will form a dynamic twin 7-foot towers duo with his twin brother Tomislav Ivisic for head coach Brad Underwood. pic.twitter.com/c4kr8w0pO9
His brother, Tomislav, is a center for the Fighting Illini. Tomislav made 31 starts in his first year at Illinois and averaged 13 points and 7.7 rebounds per game.
Zvonimir averaged 8.5 points, 4.3 rebounds and 1.9 blocks per game in 35 appearances and 19 starts this season with Arkansas. Now, the 7-foot brothers from Croatia link up to make scoring near the rim difficult for their Big Ten foes.
Illinois finished 22-13 on the year, earning a six-seed in the NCAA tournament. The Fighting Illini lost to No. 3 seed Kentucky in the round of 32. Now, coach Brad Underwood gets a big addition through the portal.
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Blake Silverman is a writer at Sports Illustrated, primarily covering the NBA and WNBA. Before joining SI in November 2024 as a breaking/trending news writer, he covered the WNBA, NBA, G League and college basketball for numerous sites, including Winsidr, SB Nation and A10Talk. He’s an alum of both Michigan State and St. Bonaventure University, receiving a master’s degree from the Bonnies’ sports journalism program. Outside of work, he’s a husband, father, yogi and fairly mediocre tennis player who’s open to any tips on how to play defense in EA Sports College Football.