Mets–Yankees rivalry - Wikipedia
Mets to hold 'Seinfeld Night' with Jerry Seinfeld, Keith Hernandez
Mets to host Seinfeld Night vs. Phillies, reunite Keith Hernandez and Jerry Seinfeld
Reviews - GEORGE VECSEY
A Mets game about nothing: Jerry Seinfeld, Keith Hernandez to reunite at Citi Field
Mets host Seinfeld bobblehead night at Citi Field - ESPN
The Seinfeld Keith Hernandez Game Didn't Happen Today
New York Mets news: Jerry Seinfeld, Keith Hernandez to reunite on 'Seinfeld' night
Jerry Seinfeld and Keith Hernandez reunite for some laughs in 2019, Time Machine Tuesday