Philadelphia Flyers defenseman Andrew MacDonald will be out for approximately six weeks after suffering a lower-body injury during an offseason workout, the club announced on Sunday.

MacDonald averaged the third-most ice time among Flyers blue-liners during the 2017-18 season, tallying 21 points and 131 blocked shots in 66 games.

MacDonald's absence could give towering 21-year-old blue-liner Philippe Myers a chance to become one of Philadelphia's top-six defensemen to open the season.

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