EDEN PRAIRIE, Minn. (AP) The Minnesota Vikings have lost another offensive lineman to a torn pectoral muscle.

Backup tackle Carter Bykowski is out with the injury, and coach Mike Zimmer says he's may not be able to play again this season.

Bykowski is the fifth Vikings player to suffer a torn pectoral muscle in the last year. Zimmer says the team is consulting with experts in the field to try to understand why the same injury keeps happening.

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Bykowski's injury depletes a position that was already thin when starting right tackle Phil Loadholt was lost for the season with a torn left Achilles.

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