Hosting a pro tournament in Crotona Park would not be possible without the completion of the Cary Leeds Center in 2017. It has a two-story clubhouse and 22 courts, including two sunken courts with seating for 1,000 spectators. No more than five will be used for the Bronx Open. In July, the complex became the new home of World Team Tennis matches for the New York Empire, which featured Sloane Stephens and John Isner. The center is also home to N.Y.J.T.L. programs, which serve more than 10,000 children…