The Seahawks will have a quartet at the Pro Bowl this weekend after safety Kam Chancellor and cornerback Brandon Browner were added to the NFC roster.

Both players were named first alternates in the Pro Bowl selections. They join free safety Earl Thomas, who is a starter, and fullback Michael Robinson, who was selected as an injury replacement for Green Bay's John Kuhn.

Chancellor and Browner are each replacing a 49er in the Pro Bowl lineup. Chancellor is in for safety Dashon Goldson, Browner for cornerback Carlos Rogers. Both of San Francisco's players are out because of injury.

Four is the most Seahawks chosen for the Pro Bowl since 2007 when the Seahawks had six players picked for the game: QB Matt Hasselbeck, LT Walter Jones, DE Patrick Kerney, LB Julian Peterson, LB Lofa Tatupu and CB Marcus Trufant.

Three of Seattle's four starting defensive backs will be appearing in the Pro Bowl, which demonstrates just how remarkable the turnaround has been in Seattle's secondary. The Seahawks ranked among the six worst teams in passing yardage allowed in each of the three previous seasons. Seattle finished with 22 interceptions, its most in any season since 2004.