Mets, Yankees to have fans as NY relaxes rules for sports, concert venues
Take the shot, get a ticket: New York baseball fans offered new perk to get vaccinated
Mets edge A's 3-2 for third straight win
Citi Field to allow limited fans for Mets 2021 Opening Day
Rivals unite to mark anniversary of Sept. 11 attacks
Yankees, Mets allowed to start seasons with 20% capacity – Hartford Courant
MLB: Baseball attendance decline forces teams to re-evaluate stadiums
Somber Sept. 11 marked at New York Mets-Yankees matchup, US Open
Rooting for Your Home Team in Person? Here's What You Need to Know. - The New York Times
Citi Field, New York Mets ballpark - Ballparks of Baseball
Yankee Stadium - Wikipedia
Mets drop further as Kodai Senga hit hard in another loss to Cincinnati - The Boston Globe
Here's how many fans each MLB team will allow on opening day - Los Angeles Times