Updated

Tampa Bay Lightning defenseman Mattias Ohlund underwent arthroscopic surgery on both knees Tuesday.

The team said Ohlund will be out indefinitely, but reports indicate he could be sidelined as long as six weeks.

Selected 13th overall by Vancouver in the 1994 draft, the 35-year-old has 93 goals and 343 points in 909 career games with the Canucks and Lightning.