Wrigley Field groundbreaking ceremony

Attendees take pictures of home plate .  (Armando L. Sanchez / Chicago Tribune)

Trudie Acheatel stands on the pitching mound while attending the groundbreaking ceremony.  (Armando L. Sanchez / Chicago Tribune)

Attendees arrive through the stands.  (Armando L. Sanchez / Chicago Tribune)

Attendees and vendors walk near third base.  (Armando L. Sanchez / Chicago Tribune)

From left, Alderman Pat O’Connor talks with Mayor Rahm Emanuel after attending the groundbreaking ceremony.  (Armando L. Sanchez / Chicago Tribune)

Cubs owner Tom Ricketts addresses members of the audience and media.  (Armando L. Sanchez / Chicago Tribune)

44th Ward Alderman Tom Tunney speaks during the ceremony.

Former Cubs pitcher Kerry Wood speaks to the crowd.  (Armando L. Sanchez / Chicago Tribune)

Former Cubs pitcher Kerry Wood addresses members of the audience and media.  (Armando L. Sanchez / Chicago Tribune)

Theo Epstein, president of baseball operations, addresses members of the audience and media.  (Armando L. Sanchez / Chicago Tribune)

Baseball commissioner Bud Selig speaks during the ceremony.  (Armando L. Sanchez / Chicago Tribune)

Crane Kenney, president of business operations, addresses members of the audience and media.  (Armando L. Sanchez / Chicago Tribune)

From left, Alderman Tom Tunney, Alderman Pat O’Connor, Mayor Rahm Emanuel, Tom Ricketts, and Bud Selig.