Musk trains after Zuckerberg's training video amid cage fight match goes viral

Podcaster Lex Fridman has tweeted photos of his training session with Tesla CEO Elon Musk amid the cage fight challenge with Facebook CEO Mark Zuckerberg. He wrote, "I'm extremely impressed with his strength, power, and skill...It's really inspiring to see Elon and Mark doing martial arts." Earlier, Fridman also posted a video of his jiu-jitsu training with Zuckerberg.