Nassau County police say Jason Maser, 22, is accused of sexually assaulting a 15-year-old girl while working as a girls' volleyball coach for Sacred Heart High School in Hempstead and B&B Volleyball in Albertson.
They say the rapes happened on February 7 and March 7.
Maser, of Syosset, is facing charges of two counts of third-degree rape, two counts of third-degree criminal sexual act, and endangering the welfare of a child.
He was arraigned Friday and bail was set at $75,000 and an order of protection was issued.
Detectives are requesting anyone who may have been victimized by the suspect to contact the Special Victims Squad Detectives at (516) 573-4022 or Nassau County Crime Stoppers at 1-800-244-TIPS. All callers will remain anonymous.
ALSO READ | Bill filed to prevent squatters from having rights in New York
Working to get squatting loophole changed in New York
----------
* More Long Island news
* Send us a news tip
* Download the abc7NY app for breaking news alerts
* Follow us on YouTube