The USA Network drama - currently midway through its second run - stars Callie Thorne as Dr. Dani Santino, a sports psychologist.
A potential third season order would be for just ten episodes, down from season one's 12 and season two's 16, Deadline reports.
Necessary Roughness launched with 4.67m viewers in June 2011, but an August 2012 airing saw the show hit a series low of 2.06m.
The series is the last of USA's original series to have its future determined - Psych, Burn Notice, Royal Pains, White Collar, Covert Affairs and Suits were all previously picked up for new seasons.
Meanwhile, Sarah Shahi's Fairly Legal, cop series Common Law and Sigourney Weaver drama Political Animals have all been dropped by the cable network.
> 'Suits', 'White Collar', 'Necessary Roughness' return dates confirmed
Watch a promo for the return of Necessary Roughness below: