Seattle Seahawks coach Pete Carroll said on his radio show Monday morning that cornerback Richard Sherman played the second half of the season with an MCL injury in his knee. Carroll told KIRO-AM that Sherman's injury was significant and it was ''stressful'' for Sherman to play with the injury. Carroll did not specify which knee was injured, but said it was similar to Russell Wilson's sprained MCL suffered early in the season in that Sherman could play with the injury. More...