Delanie Walker has said that there are plenty of receiving options for the San Francisco 49ers despite a string of injuries.

Mario Manningham is the latest player to be ruled out for the rest of the season, while Vernon Davis is recovering from a concussion.

Tight end Walker told the team's website: "I don't know what's going to happen. We've still got Ted Ginn Jr. that can still play, AJ [Jenkins], so they might fill that spot. I'm confident in those guys going out there.

"Those guys show us a lot at practice. They make great plays on our defense and we have one of the best defenses in the league.

"We've got to see what's up with Vernon and go from there."

Walker saw his workload increase in the 49ers' loss to the Seattle Seahawks on Sunday following the injuries to Manningham and Davis.

San Francisco face the Arizona Cardinals in their last regular season game on Sunday.