The Panthers begin training camp this week. Here are players and key position battles to watch -- and a 53-man roster projection.

The Carolina Panthers will open training camp without three players - including their only punter. The team announced Monday that it placed tight end Tommy Tremble and wide receiver Dan Chisena on the active/physically unable to perform (PUP) list and punter Sam Martin on the active/non-football injury (NFI) list.

With NFL training camp season upon us, Michael Baca provides a refresher on the Carolina Panthers' roster changes, position battles and notable subplots.