The 5-9, 217-pound Marshall re-joins the Dolphins after being waived by the team on May 28, 2014. Marshall originally signed with Miami as an undrafted rookie free agent on May 3, 2013, following the 2013 NFL Draft. He was released following training camp on August 31, 2013. He was later added to the Dolphins practice squad on November 26, 2013 and re-signed with the team on February 7, 2014. A four-year letterman at Arizona State, he played in 49 career games for the Sun Devils. Marshall left Arizona State ranked second in school history with 38 rushing touchdowns, fourth with 579 rushing attempts and seventh with 2,700 career rushing yards. Born October 14, 1991 in San Jose, Calif., Marshall attended Valley Christian High School in San Jose, Calif.