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Mark Harmon had fans fearing the worst when The National ENQUIRER caught the actor looking gaunt after becoming a recluse in his Hollywood home. But now RadarOnline has uncovered the secret behind the "NCIS" star's health crisis. Mark fears the kind of sudden heart attack that killed his father, but an insider revealed: “He isn’t sick. About a year ago, he had surgery on his knee. It was an old football injury.”
“Because of his tough rehabilitation, he has lost weight,” the source claimed. “But he’s doing great.” The news is a relief to the millions of viewers who tune in to "NCIS" every week, after a shocking photo of the actor went public earlier this year. “Mark seemed surprisingly frail,” said an eyewitness, with a weight-loss expert estimating that Mark had lost at least 20 pounds. But the surgery could still mean big changes on Mark's hit show!
On-set spies gave The ENQUIRER an exclusive look into how "NCIS" producers had set up a plot twist that could get Mark's character of Jethro Gibbs off the streets and behind a desk! The agents of the Naval Criminal Investigative Service are set to see their boss Leon Vance (played by Rocky Carroll) running for political office, after Gibbs was already told that a position in the "big chair" was in his future. It's a change that could let Mark step back from the action while staying in the spotlight!