Seattle Seahawks wide receiver Sidney Rice suffered a season-ending anterior cruciate ligament injury in Monday's 14-9 win over the St. Louis Rams, reports NFL.com.
The 27-year-old was taken off midway through the second quarter, with suspected knee and head injuries, with Seahawks coach Pete Carroll telling a radio show after the game that Rice was suffering from concussion-like symptoms.
Rice has a history of knee problems, and has played in just 81 of 112 possible games since entering the NFL in 2007.
As recently as the close season, he travelled to Switzerland to undergo a non-surgical procedure, before later revealing he had platelet-rich plasma treatment.
With 15 catches for 231 yards, Rice was third on the Seahawks team this season, as well as being tied for the lead with three touchdown receptions.
His injury will place even more importance on fellow wide receiver Percy Harvin, who is yet to feature for the Seahawks in 2013/14, since recovering from hip surgery, but could go straight into the Seahawks line-up for Sunday's clash against the Tampa Bay Buccaneers.