Question: This place, leased to the New York Metropolitan in 1880, also held a neautral NFL game. 
Sentence (from "Polo Grounds"): Bounded on the south and north by 110th and 112th Streets and on the east and west by Fifth and Sixth (Lenox) Avenues, just north of Central Park, it was converted to a baseball stadium when leased by the New York Metropolitans in 1880.
Relevant evidence: Yes