The Tennessee Titans returned to Nissan Stadium for Day 4 of training camp, and here are nine takeaways from the action.

The Arizona Cardinals play the Tennessee Titans at home in Week 5, and they might face a Titans team without one of their promising younger players. In training camp on Saturday, wide receiver Treylon Burks suffered a broken collarbone while attempting to make a one-handed catch in practice.

As the Tennessee Titans continue training camp, here are The Tennessean's observations on top performers and position battles from the practice field.