The Penguins have announced that defenseman and alternate captain Kris Letang has undergone successful surgery. According to the team, Letang had surgery to close a patent foramen ovale, also known as a PFO,

Pittsburgh Penguins defenseman Kris Letang underwent successful surgery to repair a hole in his heart, Penguins general manager Kyle Dubas announced Wednesday. His expected recovery time is four to six weeks.

Kris Letang had surgery to close a patent foramen ovale (small hole in the heart), the Penguins said Wednesday. The 37-year-old defenseman is expected to need 4-6 weeks to recover. He will not play in Pittsburgh's final regular-season game, against the Washington Capitals at PPG Paints Arena on Thursday (7 p.m. ET; ESPN, SNP, SNO, SNE).