The Indianapolis Colts will start training camp as a relatively healthy football team. When speaking with the local media on Tuesday, GM Chris Ballard mentioned that no one is expected to begin training camp on the Physically Unable to Perform (PUP) list, according to James Boyd of The Athletic.

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

Before the Colts' first training camp practice, let's take a look at four positional battles on defense to watch closely.