What happened: Khalil Rountree Jr. withdrew from the scheduled July 25 fight due to an injury. Uzbekistan's top-ranked fighter, No. 10 contender Bogdan Guskov, stepped in to face No. 1 contender Magomed Ankalaev.

Why it matters: As the No. 1 ranked light heavyweight, Magomed Ankalaev risks his top spot and potential title shot trajectory against a dangerous lower-ranked opponent. For Bogdan Guskov, defeating the division's top contender on short notice would immediately vault him into championship contention. The bout preserves a high-stakes headliner for the Abu Dhabi card following the departure of Khalil Rountree Jr.

What to watch: Magomed Ankalaev and Bogdan Guskov will meet on July 25 in Abu Dhabi. The winner will establish priority in the light heavyweight championship hierarchy.