What a sad story …

Former WWE star Chyna's manager, Anthony Anzaldo, has come forward to reveal that the late wrestler likely died from an accidental overdose of Ambien and Valium, reports the Associated Press.

Sadly, it seems that Chyna, whose birth name was Joan Marie Laurer, learned that sleeping pills and tranquilizers are a deadly mix ...

"It's a 98 percent certainty and 2 percent speculation," said her manager, who was the one to discover the wrestler's body at her home in Redondo Beach, California on Wednesday, April 20.

According to the manager, Chyna was a lifelong insomniac and had prescriptions for Ambien and a generic version of Valium.