LOS ANGELES -- Tennis star Pete Sampras says most of his trophies and other memorabilia were stolen from a West Los Angeles public storage facility.

The Los Angeles Times reported Tuesday that Sampras still has 13 of his 14 Grand Slam trophies.

Pete Sampras' 1994 Australian Open trophy was among the items from his tennis career stolen from a storage facility. Torsten Blackwood/AFP/Getty Images

But thieves took his 1994 Australian Open trophy and most of the hardware from his 64 tour title wins, two Davis Cups, an Olympic ring and six trophies for finishing world No. 1 in the year-end rankings from 1993 to 1998.

He said the loss "is like having the history of my tennis life taken away."

The theft happened three weeks ago. Sampras, who had stored the items as he and his family moved between housing arrangements, said he's getting the word out in hopes somebody offers a lead.

Sampras retired in 2003 and said the loss is most upsetting because he would have liked to have shown the trophies to his children.

"For me to have it for my kids is priceless," he said, according to the Los Angeles Times. "I just hope it hasn't already been destroyed. That's why I wanted to get the word out now. I know this is a long shot, but I'd regret it if I didn't at least try."

Sampras believed the items would be safe in storage. The items were not insured because there was no way to assess their true value, he said, according to the report.

"I thought there were security cameras. I thought these things were locked up tight. I was shocked," he said, according to the report.

Information from The Associated Press was used in this report.