Just days after trading for Pro Bowl wideout Brandon Marshall, the Dolphins have made another big move with their receiving corps.

Miami has traded former first-round pick Ted Ginn Jr. to San Francisco, FOXSports.com has learned. With the addition of Ginn, the 49ers now have two former top-10 picks among their receivers. Michael Crabtree was drafted No. 10 last year.

Ginn, the No. 9 pick in 2007, has not emerged as a top-flight WR in his first three years. He has averaged just 43 catches per season and has just five career TD receptions.