Rihanna is known for speaking her mind online, and the pop superstar let a Knicks fan know her true feelings on a post he shared this week. A user by the name of @peruvian_gawd blamed Rihanna for J.R.'s poor performance on the court, and she wasn't having it! 

The "Stay" singer clapped back, saying "F*ck you and your wack ass team!! No one don't want that dessert thirsty ni*ga!! He f*ckin up cus his ass be hungover from clubbing every night during playoffs!! So your issue ain't with with rasshole me." 

Looks like Rihanna's on the lookout for trash talkers on Instagram these days! Hit the above slide to see the commentary: 

Source: Complex