From NBA.com:

If I play against you the first time, or it doesn’t even have to be the first time, and you want to be all physical and just talk, or talking trash or whatever, it just gets me going. It makes me want to kick your ass so I can go on social media and literally trash you on there. So I want to trash you on the court and on social media. If you want to go down that road, good luck to you, because I don’t stop, and I never stop:

http://www.nba.com/article/2017/12/11/morning-tip-q-philadelphia-76ers-joel-embiid?collection=news#/