But head coach Jim Harbaugh says they are set at the position and that includes not bringing back wideout Randy Moss, who spent one season with the team and caught 28 passes for 434 yards and three touchdowns in 2012.
"We're excited for the young receivers that we have," Harbaugh said when asked about a Moss reunion, via NFL.com. "Really feel that somebody's going to emerge there because they have to. And competition will create that. And we'll look forward to watching that."
The team is expecting big things from 2012 first-round pick A.J. Jenkins. They also have Mario Manningham, who is coming back from injury and Anquan Boldin, acquired in a trade with the Baltimore Ravens.
More from NFL.com:
The top candidate to ascend to a major role is 2012 first-rounder A.J. Jenkins, who has spent the offseason adding muscle and working on his rapport with quarterback Colin Kaepernick. It's quite the leap of faith for a player who was redshirted last season, failing to pass Ted Ginn and Kyle Williams on the depth chart.