Michael Douglas Stricken & Frail At Grand Prix

Michael Douglas once again looked to be at death's door while bravely spending time with his son Dylan at the June 2016 Canadian Grand Prix. As reported by RadarOnline, the stricken movie star is battling to enjoy life — even as experts tell The National ENQUIRER that he sports all the signs of being treated for a recurrence of cancer!

Michael shocked onlookers earlier this year when he appeared to be frighteningly fragile and thin while attending the Super Bowl. According to sources, many eyewitness who've seen the star over the past year believe that he's battling glaucoma — or another serious disease stemming from cancer treatment. “Michael is losing his eyesight and he’s also losing his hair,” reported one insider in March. “On top of that, his weight is plunging. He probably now weighs no more than 135 pounds!

The ENQUIRER reported in February 2016 that the 71-year-old star had suffered a “shocking relapse” of cancer four years after being declared tumor-free from stage 4 tongue cancer. Michael's representative, Allen Burry, has vehemently denied the actor has suffered a recurrence of cancer.

A family member revealed the disease may have returned, “but that it’s in another part of his body — not his tongue.” Michael was also looking extremely frail while attending a film festival (as pictured) earlier this year. Dr. Jerome Spunberg, a radiation oncologist in Palm Beach Gardens, Fla., has not treated Michael, but examined photos of the star provided by The ENQUIRER: “He looks gaunt and weak," said the doctor, noting that Michael's skin showed a possible reaction to a cancer-treatment drug" “It’s called Cetuximab, and it’s used for head and neck cancer...You get a redness of the skin and an acne-like rash."

Dylan, 15, is beginning to show the same famous chin that made his dad and grandfather Kirk Douglas into film icons. But insiders say that this latest medical drama is devastating for his mother Catherine Zeta Jones, 46, who has bipolar disorder. “She went through this in 2010,” lamented the insider. “But this time, she knows [Michael] may not survive. It’s hard to cheat death twice!”