The Dolphins worked out a pair of wider receivers and a pair of defensive backs on Wednesday, according to a league source.

They were: defensive backs Deji Olatoye and Lowell Rose and wide receivers Gerrard Sheppard and Tony Washington.

Olatoye was signed by the Ravens this past May as an undrafted free agent out of North Carolina A&T, but was recently waived during roster reductions. Rose, an undrafted free agent out of Tulsa, has spent time with the Jets, 49ers and most recently the Chargers.

Sheppard and Washington also entered the league as undrafted free agents. Shepaprd, recently waived by the Packers, was initially signed by the Ravens out of Towson in 2013, while Washington, who played collegiately at Appalachain State, was recently waived by the Colts.