Complex sentence: He is slated for his first title defense at UFC 221 against former middleweight champion Luke Rockhold on February 10,2018 at Perth Arena in Whittaker's home country of Australia.
Split into simpler sentences: He is slated for his first title defense at UFC 221 against former middleweight champion Luke Rockhold. The fight will take place at Perth Arena in Whittaker's home country of Australia.