The Patriots claimed rookie OL Dustin Waldron off waivers from the Dolphins Thursday and placed OL Jamey Richard on injured reserve.
Waldron signed with the Dolphins as an undrafted free agent in May and was released on Wednesday. He was a three-year starter at left tackle at Portland State.
Richard joined the Patriots on May 29. He spent four seasons with the Colts and has appeared in 48 games with 11 starts.