MIAMI -- The Miami Dolphins Saturday released their all-time leading receiver Mark Duper, completing an off-season shuffling of their receiving corps.
Duper, 34, caught 511 passes for 8,869 yards over 12 seasons -- both Dolphins' records.
His 59 touchdown catches are second in team history behind Mark Clayton's 81. Clayton also left Miami after the 1992 season, signing with Green Bay as a free agent.
Duper and Clayton, nicknamed the 'Marks Brothers,' share the NFL record for the most multiple 1,000-yard seasons by teammates. Duper and Clayton each gained at least 1,000 yards in 1984, 1986 and 1991 and have been Dan Marino's favorite targets during his 10 seasons with Miami.
The Dolphins traded for Irving Fryar, signed Mark Ingram and drafted O.J. McDuffie during the offseason to bolster the wide receiver position.
Miami Coach Don Shula called Duper's release 'a very difficult decision.'
'With our off-season acquisitions and the personnel we have on our roster, we made the decision to go in another direction,' Shula said. 'We felt it would be best for Mark to make this move now rather than later to give him a chance to catch on with another club.'
Duper, a 1982 second-round draft pick, had 44 catches for 762 yards and 7 touchdowns last season.