The Miami Dolphins have signed cornerback Kendall Sheffield, a former fourth-round pick by the Atlanta Falcons, after his strong showing at a recent rookie minicamp tryout. At 29 years old, Sheffield aims to bolster the Dolphins' secondary. The Dolphins are looking to add depth and experience to their defensive backfield, which struggled in the previous season, and Sheffield's versatility as a cornerback could provide them with crucial flexibility. After spending time with both the Falcons and Jets, Sheffield's experience in the league may be a valuable asset as the Dolphins prepare for the upcoming season.