- Bill Williamson, ESPN Oakland Raiders reporter
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The team announced in the third quarter he would not return.
Davis missed the game against the Colts in Week 3 with a hamstring injury, which is the last game the 49ers have lost.
Davis is having a career year. He has 29 receptions for 518 yards and seven touchdowns this season.
It is the second concussion of the season for Reid, who has been terrific as a rookie. He suffered one at Seattle in Week 2.
San Francisco 49ers star tight end Vernon Davis will not return Sunday against Carolina after suffering a concussion.