Cardinals' Fitzgerald undergoes MRI on knee

TEMPE, Ariz. (AP) -- All-Pro wide receiver Larry Fitzgerald was to have an MRI on his injured right knee but he indicated on his Twitter account that he is "sore but OK."

Arizona Cardinals coach Ken Whisenhunt says that the MRI was a precaution and that he was encouraged that Fitzgerald was able to go back in the game after he was injured in Monday night's 24-9 loss at San Francisco.

Fitzgerald was hurt on the third play of the third quarter when the 49ers' Dashon Goldson landed on his leg on a deep pass attempt. Fitzgerald was helped off the field and then went to the locker room. He returned to the game with 3:23 to play. The initial diagnosis was a sprained knee.

Fitzgerald said on Twitter on Monday night that he was "sore but OK." Asked again on Tuesday, he answered he was "sore but straight."

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