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

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

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

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

Alexia Putellas, Aitana Bonmatí and Patri Guijarro have been unable to combine for Spain as they do for Barcelona. At Euro ...

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

The Chargers have begun training camp. Here are players and key position battles to watch -- and a 53-man roster projection.

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

The 49ers begin training camp this week. Here are players and key position battles to watch -- and a 53-man roster projection ...