Elon Musk tore into billionaire Tesla skeptic David Einhorn, mockingly calling him 'Mr. Unicorn'

Yichuan Cao/NurPhoto via Getty Images Elon Musk is fighting short-sellers again. This time, he's reignited a feud with Greenlight Capital CEO David Einhorn, a well-known Tesla short and a regular critic of the company Musk. After Einhorn reportedly criticized Tesla in a scathing analyst's note, Musk derided Greenlight's financial performance and addressed the hedge fund CEO as "Mr. Unicorn." He also offered to meet with Einhorn. Musk has sparred with Einhorn before, and last year sent him a bunch of short shorts to make fun of his position as a short seller. Visit Business Insider's homepage for more stories. Elon Musk is fighting with short sellers again. This time, he has reignited a feud with David Einhorn, the billionaire CEO of Greenlight Capital and a long-time Tesla skeptic. That's after Einhorn sent a skeptical letter about Musk and Tesla to Greenlight's investors this week.See the rest of the story at Business InsiderNOW WATCH: Inside the US government's top-secret bioweapons labSee Also:Elon Musk says Tesla will unveil its 'Cybertruck' this monthThe 16 most bizarre things Elon Musk has said he believesElon Musk is feuding with a popular car TV show after it posted a video of a Porsche Taycan beating a Tesla Model S in a drag raceSEE ALSO: Elon Musk called the lawyer who interviewed him for a Tesla shareholder lawsuit 'a bad human being' and other insults during a bizarre deposition