ST. LOUIS (AP) -- St. Louis Rams receiver Mark Clayton won't return this season after suffering a knee injury.
Coach Steve Spagnuolo said Monday that Clayton was hurt early in Sunday's 44-6 loss at Detroit. He says Clayton has a torn patellar tendon in his right knee.
Clayton was acquired in a trade with Baltimore on Sept. 6. He caught 22 passes for 300 yards and two touchdowns in the Rams first four games, leading the team in both categories as he gave rookie quarterback Sam Bradford a steady option.
The 28-year-old Clayton is the third St. Louis wide receiver to suffer a season-ending injury in 2010. Donnie Avery and Dominique Curry both tore ACLs in their knees.
St. Louis (2-3) hosts San Diego (2-3) next weekend.
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