Video: Marshall locked up for five years

Marshall Agrees To Extension With Dolphins

Adam Schefter on Brandon Marshall's contract extension

ESPN's Adam Schefter reports the Miami Dolphins already have signed receiver Brandon Marshall to a four-year extension worth $47.5 million. This is in addition to the one-year qualifying offer he signed Tuesday, bringing the Dolphins' commitment to $50 million over five years, in addition to the two second-round draft picks they spent to get him. Marshall's deal includes $24 million in guarantees.

Depending on how you count the money, Marshall can be considered the highest-paid receiver in NFL history. Arizona Cardinals star Larry Fitzgerald also averages $10 million a season.