CORRECTION, 2/15/13, 10:05 a.m. EST: This article’s eleventh paragraph has been corrected to reflect the fact that Yonatan Even is a partner at Cravath. We regret the error.

Anheuser-Busch InBev said Thursday it has revised its $20.1 billion deal to acquire the 50 percent stake in Mexican brewer Grupo Modelo it does not already own after U.S. regulators moved to block the purchase due to antitrust concerns.