Opening Day at Citi Field (23 images)

Mets manager Terry Collins greets players dow the third base line before the New York Mets play the Philadelphia Phillies on Opening Day at Citi Field in New York City on April 13, 2015. The Mets honored slain NYPD officers Wenjian Liu and Rafael Ramos before the game. Photo by John Angelillo/UPI

Mayor Bill de Blasio gives a thumbs up when he stands on the field with the widows and family members of slain NYPD police officers Wenjian Liu and Rafael Ramos before the New York Mets play the Philadelphia Phillies on Opening Day at Citi Field in New York City on April 13, 2015. The Mets honored slain NYPD officers Wenjian Liu and Rafael Ramos before the game. Photo by John Angelillo/UPI

Three NYPD Helicopters fly over the field after the National Anthem before the New York Mets play the Philadelphia Phillies on Opening Day at Citi Field in New York City on April 13, 2015. The Mets honored slain NYPD officers Wenjian Liu and Rafael Ramos before the game. Photo by John Angelillo/UPI

Maritza Ramos, widow of New York City police officer Rafael Ramos, is greeted by Mets third baseman David Wright before the New York Mets play the Philadelphia Phillies on Opening Day at Citi Field in New York City on April 13, 2015. The Mets honored slain NYPD officers Wenjian Liu and Rafael Ramos before the game. Photo by John Angelillo/UPI