The tragedy that’s tearing the country superstar apart.

GARTH BROOKS‘ ex-wife SANDY is losing her battle with cancer, sources say, and the bighearted country superstar is spending as much time as possible with her.

Sandy’s struggle with breast cancer was revealed in 2006, and "doctors recently broke the news that the cancer has spread throughout her body," a source told The ENQUIRER.

"Doctors have warned Sandy that she could have less than two years to live."

She and Garth have remained close since their 2001 divorce, even though he’s now married to country singer TRISHA YEARWOOD.

He lives near Sandy, 45, in Oklahoma. Their 3 daughters  bounce back and forth between their homes.

"Sandy’s talked to Garth about taking in the girls, and he’s providing her with as much emotional support as he can," the source divulged.

While Garth’s publicist denies Sandy is losing her cancer battle, she had a long talk with Garth after getting the bad news, according to a family friend.

 "Garth was in tears."

For the full heartbreaking story you’ll never forget it’s in the new ENQUIRER