NEW YORK (CBSNewYork)  Mets fans don’t forget.

You saw that firsthand on Monday afternoon.

During introductions on opening day at Citi Field, head trainer Ray Ramirez was loudly booed.

Mets fans have long criticized, fair or not, the significant and frequent injuries sustained by the organization’s players. Thus far in 2015, Zack Wheeler and Josh Edgin have been lost for the season.

But the trainer wasn’t the only one who received a poor reception.

As was the case at last year’s opener, New York Mayor Bill de Blasio was not greeted warmly by fans.

As WCBS 880’s Peter Haskell reported, other elected officials drew no reaction when they were introduced. But a loud chorus of groans was heard for the mayor.

Ruben Tejada was showered by boos, while manager Terry Collins received a somewhat mixed reaction.

Notorious Mets killers Chase Utley, Ryan Howard and Cole Hamels received the most boos of any Phillies.