According to Field Yates of ESPN, the Dolphins worked out a pair of wide receivers and a pair of defensive backs on Wednesday. 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. Rose came undrafted out of Tulas and most recently spent time with the San Diego Chargers. Sheppard was recently waived by the Green Bay Packers and Washington was recently waived by the Indianapolis Colts.
There was no word as to why the Dolphins were working out these players - perhaps just to kick their tires and making sure to cover all of their bases.