He'll miss at least the first six games, but could be out even longer.
Under the NFL rules, Harvin could come back anywhere ranging from the seventh week to the 15th week of the regular season.
The Seahawks placed linebacker Korey Toomer on injured reserve.
Cornerback Tharold Simon and defensive end Greg Scruggs were placed on the reserve-physically unable to perform list as the team got down to 75 players.
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Aaron Wilson covers the Ravens for The Baltimore Sun.
This story originally appeared on Nationalfootballpost.com
- American Football
- Sports & Recreation
- Percy Harvin
- Seattle Seahawks
- Korey Toomer