Carolina Panthers During his
rookie season, Marshall played in portions of all 16 games. Marshall spent the first part of his career in the nickelback role, playing behind Chris Gamble and Ken Lucas. After the 2008 playoff season, Ken Lucas was released from the team, thus promoting Richard Marshall to the starting lineup. The
NFL Network voted a play by Marshall as the "Number 1 play of the 2008 preseason". The play involved Marshall intercepting a fake field goal flick from the holder to the kicker and running it back for a touchdown.
Arizona Cardinals Marshall signed as an unrestricted free agent with the
Arizona Cardinals on July 30, 2011.
Miami Dolphins Marshall signed a three-year contract worth 16 million dollars as an unrestricted free agent with the
Miami Dolphins on March 14, 2012. In 2012, it was reported that Marshall was out with a back injury. On August 20, 2013, he was released by the Dolphins.
San Diego Chargers On August 23, 2013, Marshall agreed to terms on a contract with the
San Diego Chargers. He was released on October 27, 2014. ==NFL career statistics==