With two practice squad vacancies to fill, the Dolphins have brought back one of their undrafted rookies by re-signing offensive tackle Daren Heerspink.Signed by the Dolphins in May out of Portland State, the 6-6, 315-pound Heerspink was waived by the Dolphins during final cuts on Aug. 30. He was re-signed to the practice squad but released on Sept. 12 and has been a free agent ever since.
The Dolphins still have one opening on the practice squad following the Heerspink signing. Linebacker Rob Ninkovich and running back Jalen Parmele have been signed off the practice squad by other teams within the past week.
