The 49ers are expected to make a run "at the right price" for Miami Dolphins cornerback Sean Smith, who is scheduled to hit the free-agent market on Tuesday, a league source told

The 49ers are expected to face competition from the Philadephia Eagles, the Kansas City Chiefs and Tampa Bay Buccaneers for Smith, a four-year veteran from Utah. Smith was a second-round draft pick in 2009.

The 49ers struggled in the postseason against big wide receivers, such as Atlanta's Julio Jones and Baltimore's Anquan Boldin, and Smith would provide the 49ers with tremendous size (6-foot-3, 214 pounds) on the outside.