Wide receiver Michael Crabtree, who spent his first six NFL seasons with the 49ers, made a free-agent visit to the Miami Dolphins on Thursday, the team announced.
Crabtree and Seattle Seahawks backup quarterback Tarvaris Jackson met with Dolphins coaches and officials, the club announced.
Crabtree, who started 77 of the 79 games in which he appeared for the 49ers since his arrival as a first-round draft pick in 2009, caught 68 passes for 698 yards and four touchdowns last season. His average of 10.3 yards per reception was the lowest of his career.
The 49ers last week signed former Baltimore Ravens wide receiver Torrey Smith to a five-year, $40 million contract, presumably to replace Crabtree in the starting lineup.
Anquan Boldin remains under contract for the 2015 season after recording back-to-back 1,000-yard seasons since coming to the 49ers in a 2013 trade with the Baltimore Ravens.