NBC has denied claims made by Sharon Osbourne that the network discriminated against her son Jack by dropping him from the upcoming reality series "Stars Earn Stripes" after he was diagnosed with multiple sclerosis.

NBC Entertainment Chairman Robert Greenblatt issued a statement claiming the network offered Jack two other roles on the show which he later turned down.

"First, we have the deepest affection for Sharon Osbourne and consider her to be part of the NBC family," said Greenblatt. "And our hearts go out to her, Ozzy, Jack and his family at this time. We hold medical information in strict confidence and therefore cannot comment specifically about Jack, but as a company that cares deeply about the health and safety of everyone on our shows -- especially one like 'Stars Earn Stripes' that requires dangerous water stunts, strenuous physical activity, and uses live ammunition -- we required all potential participants to undergo medical vetting to ensure that they could safely participate."

Sharon has announced that she will not be returning as a judge on "America's Got Talent', and stated in an interview with the New York Post that dropping her son from "Stars Earn Stripes" was "discrimination" and that it was "badly handled".