Georges St-Pierre's first opponent since returning to the UFC has been revealed. The ex-welterweight champion will battle middleweight titleholder Michael Bisping later this year. In facing Bisping, he will make his middleweight debut over three years since exiting the sport as the reigning two-time UFC welterweight champion. After capturing the 185-pound strap when he knocked out Luke Rockhold at UFC 199, Bisping has since defended his title in a rematch against Dan Henderson.