David Duchovny is training for a triathlon. "The X Files" star - who is a regular competitor in the Nautica Malibu Triathlon - has been getting into shape at renowned fitness expert Robert Pennino's indoor triathlon training class in New York.

The actor missed out on this year's event because he was being treated for sex addiction at a rehabilitation clinic.

David Duchovny has been granted an apology from British tabloid Daily Mail after it ran a story claiming the "Californication" star and his tennis instructor had an affair.

Last month, following the announcement that the 48-year-old actor and his wife of 11 years, Tea Leoni, were separating, the paper printed a story that suggested Duchovny and tennis coach Edit Pakay had an affair.

David Duchovny and Tea Leoni have sparked rumors they have reunited after they were spotted "holding hands."

The estranged married couple - who announced their separation in October, following David's trip to rehab to seek treatment for his sex addiction - took their two children, nine-year-old Madelaine and six-year-old Kyd trick-or-treating for Halloween in New York on Friday.

David Duchovny's tennis instructor Edit Parkay says she is not to blame for the breakdown of his marriage to Tea Leoni.

Edit - who was quoted in a recent interview as saying she was "not going to deny" reports she had an affair with "The X-Files" star - insists "there is no romance" between her and the 48-year-old actor.

Tea Leoni has added to rumors she is secretly dating Billy Bob Thornton. The "Ghost Town" actress - who has been separated from "The X-Files" star David Duchovny for several months - admits she got very close to the actor on set of her new film "Manure."

She said: "We have this incredible cast with Billy Bob Thornton, who is maybe my new favorite person in the world."