Former NHL great Peter Mahovlich has lost several pieces of jewelry that are invaluable connections to his hockey career.

Two rings and a watch were stolen from the car of the four-time Stanley Cup-winner between Thursday night and Friday morning while he was in St. Catharines, Ont., to attend a golf tournament.

According to Niagara Regional Police, someone smashed the driver's-side window of the car sometime after Mahovlich parked it around 10 p.m. Thursday night and before 8 a.m. Friday.

One of the rings was from the legendary 1972 Summit Series against the Soviet Union which Canada won four games to three.

The watch also had a connection to the Summit Series.

"The watch was given to me when the whole '72 (national) team was inducted into the Canadian Sports Hall of Fame," Mahovlich said Friday.

He received the other ring from the Montreal Canadiens Alumni Association, commemorating his Stanley Cup wins with the team in 1971, 1973, 1976 and 1977.

"It's not the cash value of the jewelry that matters — it's what the rings mean," Mahovlich said.

"It's not life-threatening, which is always good, but they do have tremendous sentimental value," he said. "It's something that cannot be replaced and the sad thing is, you never know where they will end up or how."

With files from the Canadian Press