Pleasantville Public Schools Superintendent Natakie Chestnut-Lee, in an announcement to families, wrote: "The other students who came in contact with this student have been notified."
The name of the now-quarantined football player has not been released.
Parents also received an automated cellphone call.
"The students participated in sports practice on campus during the past two weeks," Chestnut-Lee wrote.
Pleasantville students have been advised to self-quarantine for 14 days from the last possible exposure.
The district is following CDC guidelines, the superintendent said, urging anyone with questions to contact her office.
A copy of the Pleasantville Public Schools superintendent's letter can be found by clicking here.
Click here to follow Daily Voice Lakewood and receive free news updates.