It happened just before 6 a.m. in Lincoln Terrace Park in Crown Heights.
The 47-year-old victim had apparently gotten into a dispute with the gunman.
He was taken to Kings County Hospital in stable condition.
So far, there are no arrests.
Anyone with information in regard to this incident is asked to call the NYPD's Crime Stoppers Hotline at 1-800-577-TIPS (8477) or for Spanish, 1-888-57-PISTA (74782).
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