The Mets hit their first grand slam since August 1, 2009, when Jason Bay connects in the 4th inning of their game against the Tigers. They don’t have to wait as long for the next one, as one inning later, Carlos Beltranimitates him to cap a 14 – 3 win. The Mets had been outslammed 18-0 in the interim.

On June 28, 2011 The Mets hit their first grand slam since August 1, 2009, when Jason Bay connects in the 4th inning of their game against the Tigers. They don’t have to wait as long for the next one, as one inning later, Carlos Beltranimitates him to cap a 14 – 3 win. The Mets had been outslammed 18-0 in the interim.

Source
Baseball Reference June 28