Rams' rookie safety McDonald, Finnegan injured

The Associated PressSeptember 27, 2013
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San Francisco 49ers wide receiver Anquan Boldin is brought down by St. Louis Rams cornerback Cortland Finnegan, rear, and safety Rodney McLeod (23) after catching a pass for a 42-yard gain during the second quarter of an NFL football game Thursday, Sept. 26, 2013, in St. Louis. (AP Photo/Tom Gannam)

ST. LOUIS (AP) -- St. Louis Rams starting safety T.J. McDonald injured a leg Thursday night against San Francisco.

Trainers immediately put an air cast on McDonald's right leg, and he was carted off.

McDonald, a rookie third-round draft pick out of USC, appeared to run into defensive end Gerald Rivers at the end of a 3-yard run by the 49ers' Frank Gore in the third quarter.

St. Louis cornerback Cortland Finnegan sustained a thigh injury in the second quarter and his return was doubtful. Finnegan was hurt covering Anquan Boldin on a 20-yard touchdown pass from Colin Kaepernick 6:20 before halftime.

San Francisco backup wide receiver Quinton Patton's return was questionable after a first-quarter foot injury.