Dolphins RB Arian Foster begins training camp on PUP list

The Miami Dolphins placed former Pro Bowl running back Arian Foster and four additional players on the physically unable to perform (PUP) list at the start of training camp on Friday.

Foster signed with the Dolphins last week and is expected to compete with incumbent Jay Ajayi for the starting job at tailback. Foster suffered a season-ending Achilles injury in 2015.

Miami also placed linebacker Zach Vigil, running back Damien Williams and cornerbacks Xavien Howard and Bobby McCain on the PUP list. These players will not participate in the Dolphins' first practice of training camp Friday morning.