Complex sentence: On October 6, ROH announced that Elgin was returning to the promotion the following weekend, however, just hours later, Elgin announced on Twitter he was quitting the promotion, claiming that ROH had promoted him for an event he was not going to appear at.
Split into simpler sentences: On October 6, ROH announced that Elgin was returning to the promotion the following weekend. However, just hours later, Elgin announced on Twitter he was quitting the promotion, claiming that ROH had promoted him for an event he was not going to appear at.