The South Korean welterweight star is injured and had to withdraw from his fight with Neil Magny on the Aug. 20 card in Las Vegas, MMA Fighting's Ariel Helwani confirmed Tuesday. MMAjunkie was first to report the news.
It's unclear whether the UFC will attempt to fill Kim's spot against Magny or scrap the fight altogether.
"Neil deserves a top-10 opponent," Magny's coach Leister Bowling of Elevation told Helwani.
Magny (18-4) has won three in a row and 10 of his last 11 fights. He's one of the most consistent 170-pounders in the UFC.