LOS ANGELES -- Tennis great Pete Sampras was set Monday to be reunited with dozens of his stolen trophies after they were dropped off anonymously at the back of a Los Angeles hospital.

Sampras was shocked in December when most of the silverware from his 64 tour titles, including one of his Australian Open trophies, disappeared from a storage facility in West Los Angeles.

But the trophies turned up Saturday after a private investigator got a tip-off that they would be left at a Los Angeles hospital, according to TMZ.com.

The investigator alerted the hospital security, where staff recovered some of the 14-time grand slam winner's trophies. It was unclear exactly which trophies were recovered.

Sampras told the Los Angeles Times at the time of the theft, "My first Australian Open trophy is gone, and so is everything else. We've had some housing issues and we stored things while we were sorting that out."

Sampras added he was stunned that the storage facility was not safe. "I was like, 'What?' I thought there were security cameras. I thought these things were locked up tight. I was shocked," he told the newspaper.

Police "had no idea" how the trophies came to be found at the hospital and were still investigating the thefts, TMZ.com reported.