The reality TV star and son of rocker Ozzie Osborne has alledged that the US broadcaster fired him due to his recent diagnosis with multiple sclerosis. He responded angrily on Twitter, saying, “NBC said they didn’t fire me over my diagnosis? Bull-Fucking-SHIT.”

The show in question ‘Stars Earn Stripes’ is a new military fitness challenge reality show in which celeb compete in tough challenges.

%TNT Magazine% Jack Osborne tweet

Jack’s mother Sharon Osborne has also kicked off with the network, quitting her role as a judge on ‘America’s Got Talent’ in protest against NBC.

Jack also refered to a fitness challenge he took part in this year, tweeting “I took part in a 16 hr challenge over 30 miles with a 40lbs ruck on my back in Jan. I had MS then. Don’t tell me wot physically demanding is.”

In an official statement, NBC chairman Bob Greenblatt “Although we did not ask Jack to participate in the competition, we were able to offer him two substantial alternative roles on the show, both of which he declined. This network does not discriminate on any basis.”