MMAFrenzy.com (http://www.mmafrenzy.com) today confirmed the injury with Reljic’s manager, Zoran Saric.
A native of Croatia, Reljic is undefeated in eight professional bouts, including an impressive second-round TKO of Wilson Gouveia in his UFC debut at UFC 84 in May.
A replacement has not yet been determined.
UFC 90 “Silva vs. Cote” takes place on October 25th at the Allstate Arena in Chiago, Illinois and includes Anderson Silva vs. Patrick Cote, Diego Sanchez vs. Thiago Alves, Fabricio Werdum vs. Junior dos Santos, and Sean Sherk vs. Tyson Griffin.