Sanchez revealed the news to MMAJunkie.com on Tuesday but did not identify an opponent for the event.
“I talked to (UFC matchmaker) Joe Silva yesterday, and he penciled me in for Aug. 31,” Sanchez said. “We’re looking at opponents. I did like I always do and said, ‘Look, you’re the man, Joe. You’re the one who makes all these big matchups. And I’m, in my opinion, in the most stacked division in the UFC, and there are plenty of great fights out there, and you’ll hook me up with a good scrap.’”