Trump is planning to hold an campaign rally in the South Bronx at Yankee Stadium in the spring when the weather is warm (March/April/May/June)....
He thinks he can make inroads with Black and Latino men to make NY competitive. Despite the fact Trump was racial during the Central Park 5 event and other racial events in the 80s in NYC.
The New York Yankees ownership are MAGA (Hal Steinbrenner, Randy Levine, Brian Cashman), so it's not surprising they would lend YS to Trump for a day, probably when the team is off-day or on the road.
The NY Knicks ownership is also MAGA, James Dolan is a MAGAT, and there are talks that Trump would have a rally at Madison Square Garden.....that would be worse than the aborted Chicago rally in 2016 that turned violent.