Miami Dolphins cornerback Sean Smith has a bruise on his left knee, dodging any serious injury. Smith was injured in the third quarter yesterday, when he blocked while safety Chris Clemons recovered a fumble. Smith was unable to return to the game when the defense got back on the field later in the game.

Smith underwent an MRI today, with no structural damage noted. Various media reports all state that Smith has a knee bruise. The reports stem from an anonymous source who spoke with the Associated Press, since the Dolphins do not discuss injuries.

Smith, the Dolphins top cornerback, becomes a free agent this offseason. He was drafted in the second round of the 2009 draft, and has started 55 of the 62 games in which he has played, missing one game in 2010. Smith has five career interceptions, with 41 passes defensed and 206 tackles.