What is the fine-grained topic of the following text: During a new interview with the Wall Street Journal this week, Dana White reaffirmed that he’s still happy in his role as the UFC President well over a year since Endeavor (formerly WME-IMG) bought the company, and also indicated that Zuffa could now look to move into boxing promotion as well. Only return the topic.
Dana White's satisfaction with his role as UFC President and potential expansion into boxing promotion