Major League Baseball will announce on Wednesday that next year’s All-Star Game will be held at Citi Field, according to a person with knowledge of the decision.

The Mets were expected to be awarded the game after the Yankees hosted it in 2008, the last year the old Yankee Stadium and Shea Stadium were open. This will be the second time the Mets will act as hosts of the game; the first was in 1964, the year Shea Stadium opened.

The announcement will be made at City Hall at 11:30 a.m. Eastern. Mayor Michael R. Bloomberg is expected to attend, along with the Mets’ principal owner, Fred Wilpon, and Bud Selig, the commissioner of baseball.