Pittsburgh Penguins defenseman Brian Dumoulin is expected to miss at least eight weeks after undergoing ankle surgery Sunday, the club announced.

Dumoulin underwent a procedure to repair lacerated tendons in his left ankle. He suffered the injury during Saturday night's loss to the St. Louis Blues.

The 28-year-old ranks second on the Penguins in average ice time, logging 21:04 per game this season. He's collected seven points in 23 contests.

Pittsburgh has been riddled with injuries, most notably to superstar captain Sidney Crosby and blue-liner Justin Schultz. Rearguard Kris Letang returned to the lineup Monday after missing eight games, while star forward Evgeni Malkin was forced to miss 11 games earlier this season.

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